请判断下列简单句的句子结构。
A. 主语+系动词+表语    B. 主语+及物动词+间接宾语+直接宾语
C. 主语+及物动词+宾语   D. 主语+及物动词+宾语+宾语补足语
Asking for information or help is a very common and necessary activity.
Loud music makes me uncomfortable.
I hurt myself while I was cooking.