Question

You ought to take up tennis for the ......... of your health.

Answer 1

Heyaa...

You ought to take up tennis for the SAKE of your health.

 # Sake - for the goodness / for the purpose

Hope it helps...

And here CutieBarbie :)

Answer 2

Answer :

Cambridge English Dictionary defines 'sake' as 'because of, or for the purpose of something.'

So, the correct sentence is :

You ought to take up tennis for the sake of your health.

In this sentence, 'for the sake of your health' means for the purpose of improving your health.