Question

A summary needs proper documentation because it's relating someone else's idea while at the same time 

       A. shortening the material.   B. directly quoting from the source.   C. changing things to support one's own research.   D. going into greater depth.

Answer 1

I think it's A. Shortening Ideas

Answer 2

A summary needs proper documentation because it's relating someone else's idea while at the same time:

A.  shortening the material.