The nurses went on strike to protest their being overworked
(A) their being overworked
(B) themselves being overworked
(C) themselves as overworked
(D) their overworking
(E) overworking themselves
Tough question. I would bet on D.
for example we say "I object to their taking advantage of the situation". No?
The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.