Which sentence is a compound sentence? A. He was in the race, but he did not win a prize.
B. The swimmers and the scientists traded information about their
work.
C. The scientists were happy that their work had helped with
improving swimming.
D. Many swimmers who worked with NASA set world records in the
suits.

A. He was in the race, but he did not win a prize.

Explanation:

two independent clauses connected with a comma and a coordinating conjunction

the choice that is not a technique that you should use to come up with ideas for the topic of a research project is, writing about academic subjects that are not interesting to you. this does not belong to the techniques to come up with ideas because having no interest in a certain topic will lose your drive to come up with better ideas. it gives no room for improvement and acquiring of new ideas and information. 

explanation: