I didn’t know anything about any of the books so my choice was q

I didn’t know anything about any of the books so my choice was quite ______.
A、arbitrary
B、obvious
C、evident
D、fortunate
【正确答案】：A
【题目解析】：arbitrary随意的；obvious明显的；evident明显的；fortunate幸运的句意：我对这些书一无所知，所以我的选择相当随意。