.Either of you can finsh the job but what I’m interested in is who is.A. more carefulB. ca

问题补充：

.Either of you can finsh the job,but what I’m interested in is who is.

A. more careful

B. caerful

C. the most careful

D. even careful

答案：

(答案→)A. more careful

B. caerful

C. the most careful

D. even careful

解析：句意：你们两个任何一个人都能完成这项任务，但是我感兴趣的是谁更仔细？careful为多音节形容词要用more构成比较级，结合语境可知选A。