Scientists ________ in many ways for their contributions _______ the development and progress of hum

Scientists ________ in many ways for their contributions _______ the development and progress of human society.

A.always honor; to

B.always honor; for

C.are always honored; to

D.are always honored; for

答案及解析： C

解析：

honor为及物动词，honor sb．“给某人荣誉”；

contribution to“对……的贡献”。