The answer is D. Contrasts with the Soviet Union developed and in 1959 they moved toward becoming rivals in the global framework offering two unique models of socialism. China was seen by progressive US presidents from Dwight Eisenhower to Lyndon Johnson as a feature of the more extensive 'communist threat'; a view fortified by China's procurement of atomic weapons in 1964. China's contribution in the Korean War (1950– 1953) set Chinese troops specifically against US powers and their partners, bringing about a stalemate that kept on isolating North and South Korea well into the twenty-first century.
America and england and nigeria
American colonies were farther away from the King’s rule so they felt a sense of more freedom which over time leads to the Boston Tea Party and then the Revolution.
Or the answer may be they have different types of sickness and environments.
Either or.