单选题 Public works projects have not significantly ______ the unemployment situation.
A. facilitated B. mollified C. softened D. alleviated

【正确答案】 D
【答案解析】alleviate减轻，缓解，缓和；facilitate使容易，使便利，促进；mollify使平静，抚慰；soften使温和，软化。因此D最符合题意。