【正确答案】 D

【答案解析】Fetal defects can occur during the first trimester of pregnancy if the pregnant woman gets rubella. Aspirin shouldn't be given to young children because it has been implicated in the development of Reye's syndrome. Tylenol should be used instead. Rubella immunization isn't recommended for children until age 12 to 15 months. Exposure to rubella doesn't affect a woman's ability to breast-feed.