单选题 In the first sentence of Paragraph 4," . manage this" means "to manage the process of ______ "

A、 killing the bacteria in your body
B、 multiplying to a significantly large number
C、 raising the room temperature
D、 sterilizing the perishable food

【正确答案】 B

【答案解析】[解析] 根据“The bacteria that cause food poisoning，the only significant rational bacterial worry in the average home，need to multiply into the thousands or millions before they can overwhelm your immune system and cause symptoms．”可知，B项为正确答案。