PLEASE HELP Which phrase best completes this sentence?

J’aime soulever des poids parce que c’est une activité .
A.
qui développe la concentration
B.
qui fortifie les muscles
C.
qui développe la flexibilité
D.
qui développe les réflexes

Any french speakers? could someone check if my grammar is correct? my text: ma visite au zoo se passe bien. c’est très intéressant. ii y a les ours, les éléphants, les lions, les singes, les tigres, et les canards. les ours dorment. les singes sauter beaucoup. les tigres courent vite. les marchent canards.what i was it to say in english: my visit to the zoo is going good. it is very interesting. there are bears, elephants, lions, monkeys, tigers, and ducks. the bears sleep. the monkeys jump a lot. the tigers run fast. the ducks walk.

Translate this to french without google translate asap: everyone needs different things. to live, we need food, water, and shelter. we also need things like friends, family, and education. in my life, i want to be kind, have funny friends, and to be smart. all people want different things.

Choose the best translation of the following sentence. they went to bed at 8: 00pm. ils se sont couchés à 20h00. il se sont couché à 20h00. ils s'ont couchés à 20h00. ils s'ont couché à 20h00.