Research shows that exercise has a beneficial effect on health. After

A can be the ans for this though nto sure

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Research shows that exercise has a beneficial effect on health. After much testing with many different types of persons, it has been shown that, in most cases, exercise definitely helps to prevent illnesses caused by viruses. The common cold is caused by a virus. Therefore______

Which one of the following is the best completion of the argument above?

(A) exercise alone will not prevent the common cold - WRONG. Other things that help is not mentioned in the argument

(B) exercise is no more effective than antibiotics in preventing the common cold - WRONG. Out of scope.

(C) exercise is probably not effective in preventing colds caused by bacteria - WRONG. Source of cold is not discussed so it can't be concluded that exercise helps against what type of cold.

(D) exercise helps the body to destroy invading viruses - WRONG. Exercise just prevents illnesses caused by viruses, whether it kills them is not inferrable.

(E) exercise may help to prevent the common cold - CORRECT. Virus cause cold(illness). Exercise prevents illnesses caused by viruses. Thus Exercise prevents common cold.

IMO Answer E.

The right answer is E.

Premise: Research shows that exercise has a beneficial effect on health. After much testing with many different types of persons, it has been shown that, in most cases, exercise definitely helps to prevent illnesses caused by viruses.
Premise: The common cold is caused by a virus.

From the premises above, a logical conclusion that can be drawn is that the common cold may be prevented by exercise. The modifier may is very important because from the first premise, it is stated that: it has been shown, in most cases (not in all cases), that exercise definitely helps to prevent illnesses caused by viruses. From the answer choices, it can be seen that option E is the right answer as it is a restatement of the conclusion drawn above.

(A) exercise alone will not prevent the common cold
Wrong. From the premises to the above argument, the conclusion is that the common cold may be prevented by exercise. If will not prevent were changed to may not prevent the common cold, then this option will also be a conclusion that can be drawn.

(B) exercise is no more effective than antibiotics in preventing the common cold
This is out of scope. Nothing is stated about the effectiveness of antibiotics in the treatment of common cold.

(C) exercise is probably not effective in preventing colds caused by bacteria
Wrong inference. We are only made aware of the fact that the common cold is caused by a virus and that exercises help in most cases to prevent common cold. So a conclusion that links exercise to bacteria is out of scope.

(D) exercise helps the body to destroy invading viruses
There is no link between exercise and the destruction of invading viruses or any other virus for that matter. We are only informed about the link between exercise and illnesses caused by viruses. Whether exercises help the body to destroy invading viruses or not we cannot determine.

(E) exercise may help to prevent the common cold
This is correct per the reasoning above.

Research shows that exercise has a beneficial effect on health. After much testing with many different types of persons, it has been shown that, in most cases, exercise definitely helps to prevent illnesses caused by viruses. The common cold is caused by a virus. Therefore______

Stimulus: The stimulus states that exercise ha beneficial effects on health and the study proves that it has shown that in most cases exercise definitely helps to prevent illness caused by viruses. As the common cold is caused by a virus. Therefore exercise can help.
IMO E

Which one of the following is the best completion of the argument above?


(A) exercise alone will not prevent the common cold

(B) exercise is no more effective than antibiotics in preventing the common cold

(C) exercise is probably not effective in preventing colds caused by bacteria

(D) exercise helps the body to destroy invading viruses

(E) exercise may help to prevent the common cold

From the premise, we understand that exercise is beneficial for health and can prevent illnesses caused by viruses. We see the same word prevent in all the options, so that's a good thing.

Option A is more of a sweeping generalisation and has a negative connotation about exercise. Not the BEST possible conclusion to be drawn in the given situation.

Option B and C bring in two unknown entities - antibiotics and bacteria - both of which are out of scope of the argument. Options can be ruled out.

Option D makes a bold statement saying exercise helps the body destroy the viruses. We do not know if the viruses were destroyed for the illness to be prevented, the body may have expelled them also. Lot of hypothesis possible. We just know that exercise is beneficial and helps prevent illnesses caused by virus, we do not know what is the exact benefit derived by the body from exercise which helps it fight illnesses. Option D can be eliminated.

Option E is the best conclusion since it doesn't generalise anything but still fits into the argument just right.