providing them with fertilizer. helping them grow taller. aiding them in reproduction. increasing photosynthesis.
I gave my students this multiple choice question: Bees use pollen from flowers to make honey. Bees help flowers by

Only one answer is correct among these 4 choices:
- providing them with fertilizer.
- helping them grow taller.
- aiding them in reproduction.
- increasing photosynthesis.

Could you tell me which one is correct?

aiding them in reproduction.