Which drawings are given to contractors to perform construction work A. Assembly details B. 3 D Drawing C. Working Drawing D. Prototype

The answer is "C"

C. Working Drawing

I would say C - working drawings, since a contractor gives his crew only sections to be worked on 

I will go with option C  Working drawing

C working , better said, SHOP Drawings

working drawings are given to contractor to perform the execution.

ok; working drawing OR shop drawing

Shop Drawing (Rarely named as Working Drawing)

C

c

Working Drawing obviously