单选题 There has been an increase in attendance at lectures ______ by the World Affairs Council, which brings international issues to public attention.

【正确答案】 B

【答案解析】[解析] 各项的意思是：develop“发达，发扬，发展”；sponsor“发起，主办”；advance“前进，提前”；promote“促进，提升”。空格处的意思是：由世界事务委员会主办的讲座。