Answer:
As context, Nixon's presidency pursued a policy of Détente with the Soviet Union and the People's Republic of China, or the easing of strained relations between countries.
Nixon's ultimate goal was to avoid nuclear proliferation, and end U.S involvement in the Vietnam war. Overtime, it evolved into summits with rivals by Nixon, who became the first president to travel to Moscow, and the first president to visit the People's Republic of China.
The answer is B.
“Finally, Union gunboats and troop transport boats ran the batteries at Vicksburg and met up with Grant's men who had marched overland in Louisiana. On April 29 and April 30, 1863, Grant's army crossed the Mississippi and landed at Bruinsburg, Mississippi. An elaborate series of demonstrations and diversions fooled the Confederates and the landings occurred without opposition. Over the next 17 days, Grant maneuvered his army inland and won five battles, captured the state capital of Jackson, Mississippi, and assaulted and laid siege to Vicksburg.”
They agreed Missouri could be a slave state while, Maine was admitted to be a free state.
