单选题 A When asking if their children wanted a call or a text message B requesting that C they be home by curfew, for instance, 58 percent of parents said their children D preferred a text .

【正确答案】 A

【答案解析】解析：when asking if一when asked if。句意：当家长被问到当他们设宵禁时间要求孩子回家，孩子是更喜欢电话还是短信方式时，58％的家长说孩子更偏爱短信方式。When…部分是分词短语作状语，其逻辑主语应是主句的主语parents。根据句意，家长是被问及，故asking改为过去分词asked表被动。