Bunuel
So-called "engineered foods," usually in powder or liquid form, consist of protein that is distilled from natural sources and supplemented with vitamins and minerals. Although the amino acids contained in such products stimulate the production of growth hormones, these hormones produce growth in connective tissue rather than in muscle mass; this does not improve muscle strength. Hence, athletes, who need to improve their muscular strength, should not consume engineered foods.
The argument depends on assumption which one of the following?
(A) An increase in muscle mass produces an increase in strength.
(B) People who are not athletes require neither stronger connective tissue nor muscle strength.
(C) If an engineered food does not improve muscle strength, there is no other substantial advantage to athletes from consuming it.
(D) Consuming engineered foods that provide nutrients that can be obtained more easily elsewhere is unhealthy.
(E) Growth of muscle mass enhances muscle strength only when accompanied by growth of connective tissue.
Premises:Engineered foods produce growth in connective tissue rather than in muscle mass;
This does not improve muscle strength.
Conclusion: athletes (people who need to improve their muscular strength) should not consume engineered foods.
Based on the fact that engineered foods do not improve muscle strength, the author is concluding that athletes should not consume engineered foods. What is he assuming? That engineered foods provide no other benefit to athletes. That athletes do not need growth in connective tissue. Look at the options:
(A) An increase in muscle mass produces an increase in strength.
This is not our assumption. It doesn't connect to the conclusion at all. It may be something that is implied by the argument - because the author says that EFs produce growth in connective tissue, not in muscle mass. Growth in connective tissues doesn't improve muscle strength. So in a way he is implying that growth in muscle mass may improve muscle strength, ok.
But is this an assumption for our conclusion? No.
If we negate it and get that "an increase in muscle mass does not produce an increase in strength", it is irrelevant to the author's conclusion. The conclusion talks about whether athletes should consume EF or not. EF anyway has no impact on muscle mass. So what happens when you gain muscle mass, we don't care.
(B) People who are not athletes require neither stronger connective tissue nor muscle strength.Irrelevant. Our argument's scope only includes athletes. No assumption made about non athletes.
(C) If an engineered food does not improve muscle strength, there is no other substantial advantage to athletes from consuming it.Correct. This is the assumption. He assumes that just because EFs do not improve muscle strength, they have no other benefit and hence athletes should not take it.
(D) Consuming engineered foods that provide nutrients that can be obtained more easily elsewhere is unhealthy.Irrelevant. Whether it is healthy and advisable is out of scope of this argument.
(E) Growth of muscle mass enhances muscle strength only when accompanied by growth of connective tissue.All we know is that EFs do not grow muscle mass. How muscle strength is obtained after growing muscle mass (and whether it is obtained at all), we don't care.
Answer (C)Assumptions are discussed here:
https://youtu.be/O0ROJfljRLUA pair of difficult assumption questions:
https://youtu.be/ZQnhC4d5ODU