The corrrect way should be "Tommy, in an effort to maintain clowning's positive roots, invites dancers to weekly performance battles."
Hoped I helped
The message is clear: in all the sentences, they call people to follow balanced eating diets and do exercise regularly. In sentences A, B and D, the final parts of the statements indicate that healthy eating habits and frequent exercise are a widespread phenomenon and a popular thing among humans.
In sum, the message is to persuade people to exercise and eat well because it is well-seen and accepted by the masses.