The purpose of exposition (or expository writing) is not primarily to amuse, but to enlighten and instruct. The objective is to explain and analyze information by presenting an idea, relevant evidence, and appropriate discussion. Its essential quality is clarity.
It depends on which word is in bold.
If the bolded word is <em>ribbon, </em>then it is used as a direct object in this sentence.
The winner is indirect object, and a ribbon is direct.
I think the answer is *productive.
