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GMAT 2 (CR)
Largemouth bass are usually found living in shallow waters near the lake banks wherever minnows are found. There are no largemouth bass living on this side of the lake.
Which of the following would critically complete an argument with the preceding premises given?
I. Therefore, there are no minnows on this side of the lake.
II. Therefore, there are probably no minnows on this side of the lake.
III. Therefore, there will never be any minnows on this side of the lake.
(2) II is the only one of the three, which is completely supported by the argument. Ill is easily dismissed. That there are no minnows on this side of the lake now surely does not mean that there will never be any, any more than the fact that there are no children in the park now means that there never will be any children in the park. I is very close to II and differs only in the qualification introduced by the word probably, but that is an important qualification. The author states specifically that bass are usually found wherever there are minnows. So where there are no bass, he expects to find no minnows. But, of course, he cannot be certain. So I overstates the case.