Could you tell me __________?[ ]

A. where do you live

B. who you are waiting for

C. who were you waiting for

D. where you live in

目前耐热和耐溶剂性最好的电线电缆用热塑性软塑料是（）。

A.聚氯乙烯

B.聚乙烯

C.聚丙烯

D.氟塑料