单选题 In ______, the whole tangled saga is a classic case of serious allegations falling through the cracks between federal, state and local jurisdictions and between state lines.
A. countenance B. retrospect C. gauge D. injection

【正确答案】 B
【答案解析】in retrospect回顾过去；countenance面容，支持；retrospect回顾；gauge规格，测量；injection注射。