Your answer is b ok that would be the best answer
South Carolina was the state that felt they could nullify the Tariff of 1832 and other acts of Congress. This is because them together with most of the Southern states felt like the Tariff passed by Congress in 1828 was to high and would only benefit the more industrialized Northern states.
It led to Japanese expansion into China--during the 1930s, Japan expanded their territory into mineral rich areas of Manchuria and then continued to invade China.
The goal of this expansion was to become a dominant world power as well as secure markets and resources the small island nation needed to become an industrial power.
I believe postulates are given or assumed true statements without a proof. And a theorem can be proven. You do this in geometry if I remember correctly.