he had not yet made up his mind what attitude to adopt___her A.of B.to Cin D.on

题目

he had not yet made up his mind what attitude to adopt___her A.of B.to Cin D.on
答案B请详细说明为啥呢么

答案

答案选B.
因为,这句话的真实的表达是：
attitude to her
意思是 对她的态度.
这个to 就是为什么选to 的原因.