The credibility gap was a lack of trust or disbelief about what the Johnson administration told them about the war. How did doves and hawks differ? Doves were people in favor of the U.S. withdrawing from the Vietnam War while hawks believed the U.S. should continue its military efforts in Vietnam.
Political conflicts in South Asia was based on conflicting religions. There were rivals
between Hindus and Muslims that resulted in violence. Extremist groups that cause tension and violence. Tension between India and Pakistan over an Indian state called Kashmir,
which is mostly populated by Muslims. Both India and Pakistan own
nuclear weapons, therefore a war could break out at any minute
(Hopefully that works to explain your question)
Answer:
B cut off the US from global trade