The number of the cranes is getting _____.  If we don’t help them, they will disappear _____a few years [     ]

A. fewer and fewer, in      

B. larger and larger, after

C. more and more, after    

D. smaller and smaller, in

根据《民事诉讼法》及相关法律规定，下列证据中能单独作为认定案件事实的证据是：()

A.与当事人老陈合伙做生意的老周向法院作出的证言

B.未经对方许可录制的录音资料。该录音资料音质良好，与待证事实关联性强

C.未成年人所作出与其年龄、智力状况不相当的证言

D.酷似原物，但与原物无法核对的复制品