Hi,
Facts: 1) Aerobic experts have higher metabolic rates than normal people.
So to gain weight they need to consume more calories than the people for whom this weight is normal
Conclusion : "aerobics experts
will ultimately lose the newly gained weight until their weight matches their high metabolic rate"
For the conclusion to hold true our assumption must support it.
(A) Physical trainers disagree over whether metabolic rates can be increased or decreased through the use of
targeted hormone treatments.
What ? Out of Scope(B) The metabolisms of people who are not aerobics experts are more variable than the metabolisms of people who
have been aerobic experts.
Can we even say that, also how does this help me reach the conclusion(C) People who are at their usual weights find it equally difficult to gain or to lose weight due to the constant speed
of their metabolisms.
Not relevant, Not related to the conclusion, We don't know anything about whether they are equally difficult or is one thing more difficult than the other. (D) Not many aerobics experts who have gained weight by increasing caloric intake continue to consume substantially
more calories than do people for whom the higher weight is normal.
Correct, This option says that aerobic experts do eventually consume less or same amount of calories than people with higher weight, otherwise they won't be able to reduce their weight.(E) The number of calories that an individual burns in a day is determined by the amount consumed that day and
not by the individual's current weight.
Out of scope, irrelevantHope this helps.
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--It's one thing to get defeated, but another to accept it.