14.Both Writewell and Express provide round-the-clock telephone assistance to any customer who uses their word-processing software. Since customers only call the hot lines when they find the software difficult to use, and the Writewell hot line receives four times as many calls as the Express hot line, Writewell’s word-processing software must be more difficult to use than Express’s.
Which of the following, if true, most strengthens the argument above?
(A) Calls to the Express hot line are almost twice as long, on average, as are calls to the Writewell hot line.
(B) Express has three times the number of word-processing software customers that Writewell has.
(C) Express receives twice as many letters of complaint about its word-processing software as Writewell receives about its word-processing software.
(D) The number of calls received by each of the two hot lines has been gradually increasing.(B)
(E) The Writewell hot-line number is more widely publicized than the Express hot-line number.
15.Over the last century, paleontologists have used small differences between fossil specimens to classify triceratops into sixteen species. This classification is unjustified, however, since the specimens used to distinguish eleven of the species come from animals that lived in the same area at the same time.
Which of the following, if true, would enable the conclusion of the argument to be properly drawn?
(A) Not every species that lived in a given area is preserved as a fossil.
(B) At least one individual of every true species of triceratops has been discovered as a fossil specimen.
(C) No geographical area ever supports more than three similar species at the same time.
(D) In many species, individuals display quite marked variation.(C)
(E) Differences between fossil specimens of triceratops that came from the same area are no less distinctive than differences between specimens that came from different areas.
16.Many consumers are concerned about the ecological effects of wasteful packaging. This concern probably explains why stores have been quick to stock new cleaning products that have been produced in a concentrated form. The concentrated form is packaged in smaller containers that use less plastic and require less transportation space.
Which of the following, if true, most seriously undermines the explanation offered above?
(A) Few consumers believe that containers of concentrated cleaning products are merely small packages of regular cleaning products.
(B) The containers in which concentrated cleaning products are packaged are no harder to recycle than those in which regular cleaning products are packaged.
(C) Those concentrated cleaning products that are intended to be used diluted have clear instructions for dilution printed on their labels.
(D) The smaller containers of concentrated cleaning products enable supermarkets and drugstores to increase their revenues from a given shelf space.(D)
(E) Consumer pressure has led to the elimination of wasteful cardboard packaging that was used for compact discs.
(D)
(E) Consumer pressure has led to the elimination of wasteful cardboard packaging that was used for compact discs.
