—— i don't think i can walk any further.-----____,let's stop

—— i don't think i can walk any further.-----____,let's stop here for a rest.
—— i don't think i can walk any further.
-----____,let's stop here for a rest.
A.neither am I B.Neither can i B.I don't think so D.I think so
我选的是D,看答案发现时B.
我想问为什么D不行,翻译的话也是通的啊?