see new places. find money for projects. practice public speaking. exchange their ideas.
I gave my students this multiple choice question: At science conventions, scientists present their research, and members of the audience can discuss or ask questions about the research. The main value of these science conventions is that they allow scientists to

Only one answer is correct among these 4 choices:
- see new places.
- find money for projects.
- practice public speaking.
- exchange their ideas.

Could you tell me which one is correct?

exchange their ideas.