Answer:
it's B acutally , trust me I got it right
General Grant was the northerner who could out kill or outlast enemy and won many battles.
During world war 1, The Great Britain was known as the best naval army in the world. Germany know that they cannot face the British naval army on the surface, so they invested in more submarines to help them sustain the attack from sea.
Germany use the submarines mainly to destroy ships that deliver supplies for allied countries in order to weakened them. Even though eventually Germany still lost, without submarine the allied forces would destroyed them even faster.
NASA was created by President Eisenhower because of the arms race between the USA and the Soviet Union. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer (Not necessarily mine). Thanks, it really helps!