单选题 The analysis suggests that the tradeoff between our children's college and our own retirement security is {{U}}chilling{{/U}}.

【正确答案】 A

【答案解析】划线词chilling“令人打寒颤的”；A项frightening“令人恐惧的”；B项promising“有希望的”；C项freezing“严寒的”；D项revealing“发人深省的”。