Do you know who lives in the building ________ there is a wall?

A.in front of

B.in front of whose

C.in front of which

D.in front which

答案及解析： C

解析：

the building是先行词，可以看出，定语从句表达的意思是“在建筑物的前面有一堵墙”，即in front of the building there is a wall，显然，引导词要代替the building作定语从句中of的宾语。