I believe the answer is C. oil pan Oil pan usually bolted on the bottom<span> of the crankcase (even though in most cases it's made to be detachable) to cover the bottom of engine block. It is also molded on the bottom of the crankcase so it could be used as oil reservoir.</span>
Both the USSR and the Chinese wanted to collectivize industry and rapidly industrialize. They aslo both lead to unintended consuquences such as famine.
