12.A recent study found that snoring, though not common in either group, is more common among smokers than among nonsmokers. On the basis of this evidence, the author hypothesized that smoking by itself can induce snoring.
Which one of the following, if true, casts the most doubt on the author’s hypothesis?
(A) Stress induces both snoring and smoking in certain individuals.
(B) Obesity induces many individuals to smoke.
(C) Most snorers do not smoke.
(D) Most smokers do not snore.
(E) Both smoking and snoring cause throat problems.
y d answer is A...i went for c but its wrong.
Which one of the following, if true, casts the most doubt on the author’s hypothesis?
(A) Stress induces both snoring and smoking in certain individuals.
(B) Obesity induces many individuals to smoke.
(C) Most snorers do not smoke.
(D) Most smokers do not snore.
(E) Both smoking and snoring cause throat problems.
y d answer is A...i went for c but its wrong.
