Answer:
No vamos a la playa. Es la peor de todas.
Explanation:
La peor means worst. So, basically we are saying we are not going to the beach because it's the worst than all of them. If you need any help with spanish let me know, because im fluent in it :)
I think is the third one, because in the giving sentence it says: I don’t like doing sports, so I think the third one fit in for that.