Answer to Question 1
C
Infections of the reproductive tract, such as pelvic inflammatory disease or sexually transmitted diseases (such as syphilis), are frequently associated with infertility.
Answer to Question 2
C
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Drugs affecting the action of acetylcholinesteras e can slow the progression of Alzheimer's but they do not constitute a cure. Aluminum and mercury are implicated in the etiology of Alzheimer's but their removal does not cure the disease. Extensive research in the treatment of Alzheimer's is ongoing, but a cure is not noted to be imminent.