The right choice would be C. We; subject. Because we is the action of donating.
Good luck!!
Lord of the Flies takes place on an unnamed, uninhabited tropical island in the Pacific Ocean during a fictional worldwide war around the year 1950. The boys arrive on the island when an airplane that was presumably evacuating them crashes.
Explanation:
The Olympics take place every two years and countries compete in a variety of sports.
B - too specific for the purpose
While that would be a good topic sentence, it is far too specific for the thesis of an entire essay