问题详情

What is the relation of memory to glucose tolerance, as is indicated by a research mentioned in paragraph 3？
A. People with good memory have low glucose tolerance.
B. People with poor memory have high glucose tolerance.
C. Memory level has nothing to do with glucose tolerance.
D. The poorer the memory, the poorer glucose tolerance.请帮忙给出正确答案和分析，谢谢！