d, a frisbee disc is used for recreation
I'm not sure what you're looking for but I think the word "do" is what you're looking for.
A Venn diagram is best used when comparing and contrasting two (or sometimes more) things. C. Will weights or walking keep you fit is comparing weights and walking, and therefore is the best choice to take notes on using a Venn diagram.
Hope this helped!
~Just a girl in love with Shawn Mendes