How do botos (dolphins) find a mate?
(what is so impressive to the female to chose her mate? )

According to an article from the National Geographic, male botos wave bits of flotsam to attract males. They thrash them against the surface of the water or throw them in the air. This usually happened in groups. The male dolphins seemed to be performing for the females and were often aggressive toward eachother.
Hope this helps.

I’m going to go with b!