my father wanted to know -----with his new car.a.what wrong

what was wrong
b的是太不一致
what 做主语,was wrong 为系表结构时 一般指的是毛病,麻烦事什么的.
如：
我不知道他怎么了 I don't know what is wrong(=what is the matter) with him.
请及时采纳,不懂继续问( 天天在线 ）