[求助]再问大全933

While the owner of a condominium apartment has free and clear title to the dwelling, owners of cooperative apartments have shares in a corporation that owns a building and leases apartments to them.   C

(A) While the owner of a condominium apartment has free and clear title to the dwelling,

(B) The owner of a condominium apartment has free and clear title to the dwelling, but

(C) Whereas owners of condominium apartments have free and clear title to their dwellings,

(D) An owner of a condominium apartment has free and clear title to the dwelling, whereas（C）

(E) Condominium apartment owners have a title to their dwelling that is free and clear, while

看了原来的坛子里的帖子  还是不太确定   这里之所以不选A选C是不是只是因为这样的对称更严格呢，我觉得实际上A貌似也可以啊