PrepTest 103, Section 3, Question 7
Lack of exercise produces the same or similar(36 more words not shown)
Which one of the following(8 more words not shown)
- Ataking drugs has(11 more words not shown)
- Bpeople who do(11 more words not shown)
- Cappropriate exercise can(7 more words not shown)
- Dpeople who do(18 more words not shown)
- Eif the physical(18 more words not shown)
Reading the argument
If exercise can help with the physical changes of aging and drugs offer no promise of doing so, I know which option the author is pointing toward. The passage compares the two approaches. Appropriate exercise can often slow those changes; drugs are described as offering no comparable promise. Given those facts, relying on exercise makes more sense for someone pursuing that particular goal.
What we’re looking for
The blank should finish that thought. My prediction is: if you want to slow the physical changes associated with aging, look to appropriate exercise rather than drugs. That stays with the comparison the author actually made.
Working the answers
- A
The passage says lack of exercise can produce effects like aging. It doesn't say taking drugs produces those same effects. Offering no promise of slowing a change is different from causing the effects associated with a lack of exercise. A gives drugs an effect the passage hasn't established.
- B
Sustaining health is broader than slowing the changes associated with aging. The passage doesn't tell us which people need drugs for other health purposes, so we can't conclude that nonexercisers are likely to need them. Nor should we turn the limited statement about aging into a claim that drugs have no medical use.
- C
Slowing a change is different from preventing it. A change could happen more gradually and still happen. The passage supports the first benefit for appropriate exercise; C adds the stronger claim that exercise can keep the changes from occurring. We don't need to decide whether that stronger claim is ever true to see that it isn't supplied here.
- D
Nothing tells us that people must begin exercising when young to gain substantial benefits later. The comparison concerns exercise and drugs, not early and late starting ages. D adds a limit on who can benefit that the passage never gives.
- ECorrect
This completes the comparison we predicted. For the stated goal of slowing the physical changes of aging, it is more practical to rely on something the passage says can often help than on something it says holds no promise. E keeps the goal as slowing those changes and draws the recommendation the evidence supports.
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