Evidence that before the last 50 years large body size in women was desirable is found in

I searched for your question, and I saw that perhaps your options (considering it to be multiple choice) are the following:
 
a. Caveman drawings
b. Renaissance paintings
c. Marilyn Monroe as a popular movie star.
d. All of the above

If this is true, I think option "d. All of the above" would be correct.

Yes it does it plays a big role