单选题 Left-handed persons suffer more frequently than do righthanded persons from certain immune disorders, such as allergies. Left-handers tend to have an advantage over the righthanded majority, however, on tasks controlled by the right hemisphere of the brain, and mathematical reasoning is strongly under the influence of the right hemisphere in most people.
If the information above is true, it best supports which of the following hypotheses?

A、 Most people who suffer from allergies or other such immune disorders are left-handed rather than right-handed.
B、 Most left-handed mathematicians suffer from some kind of allergy.
C、 There are proportionally more left-handers among people whose ability to reason mathematically is above average than there are among people with poor mathematical reasoning ability.
D、 If a left-handed person suffers from an allergy, that person will probably be good at mathematics.
E、 (E) There are proportionally more people who suffer from immune disorders such as allergies than there are people who are left-handed or people whose mathematical reasoning ability is unusually good.

【正确答案】 C

【答案解析】[解析] 本题读题重点在however后面的话。(C)很容易可以得出。(A)中的“most”从上文中得不出，应把“most”改为“more”就可作为一个答案；(B)中的“allergy”是个新概念，必然不对；(D)中的推理与上面段落推理无关；(E)做了一个无关比较，因此也不对。