Question

which option best corrects the parallel structure in the following sentence?
For your elective, you can sign up for rock climbing, play floor hockey, to cook a meal, or singing.
A.) For your elective, you can sign up for rock climbing, floor hockey, to cook a meal, or to sing,
B.) For your elective, you can sign up for rock climbing, play floor hockey, cooking, or singing.
C.) For your elective, you can sign up for rock climbing, floor hockey, cooking, or singing.
D.) For elective, you can sign up for rock climbing, playing floor hockey, to cook a meal, or singing.