【选】B
【解释】attitude 后面的介词可以是 towards,toward 和 to,例句如下：
1. What is your attitude to smoking?
你对抽烟的态度是怎样的
2. All we can change is our attitude toward them.
我们所能改变的是我们对其的态度.
3. He took up a compromising attitude towards the question.
他对这个问题采取了妥协的态度.
【例句参考的有道词典】