there is a table __the corner of the rooma in b at c on 能帮忙分析一下不同介词构成的关于corner的短语吧.谢谢.

there is a table __the corner of the room
a in b at c on 能帮忙分析一下不同介词构成的关于corner的短语吧.谢谢.

in表示在某一范围内角落
The blooms are in the corner of the room.
on表示在拐角(外面)上
The box is on the corner of the desk.
at表示在拐角周围
Be careful when you are at the corner of the street.

应该在房间里所以是A