His parents never approve of ________ he plans to do, which always annoys him.[    ]

A. whatever  

B. no matter what

C. no matter when  

D. whenever

三人去少年宫时分别采用乘公交车、骑自行车和步行三种方式。明明喜欢骑自行车，青青家离少年宫特别远，亮亮采用（    ）的方式到达少年宫。