Which is the best revision of the sentence?

in june i went to summer camp with dancing, singing, paint pictures, which were my favorite activities and i want to go again next year.

a) my favorite activities from summer camp that i went to in june were dancing, singing, and painting pictures. i want to go back next year!
b) next year i want to go again to summer camp that i went to in june. my favorite activities were that i danced, sang, and painted pictures.
c) i went to summer camp in june and want to go again next year. my favorite activities were dancing, singing, and painting pictures.
d) next year, i want to go back to the summer camp i went to in june with dancing, singing, and painting that were my favorite activities.