I believe it is A. Sorry if I am wrong.
Clerics from Buddhist set themselves on fire to protest pro-American south Vietnamese policies in the early 1960s in south Vietnam.
Buddhist monks set themselves on fire in 1963 as a protest against the puppet Diem regime in South Vietnam. Buddhist monk Thich Quang Duc publicly burns himself to death in a plea for President Ngo Dinh Diem to reveal “charity and compassion” to all religions.
Despite the fact that South Vietnam's three to 4 million Buddhists made up almost eighty percent of the population, they were discriminated against by using the Catholic ruling elite. On might also 8, 1963, Buddhist followers within the metropolis of Hue celebrated the Buddha's 2,527th birthday.
Priests who practiced Buddhism immolated themselves in the course of the ensuing weeks. Madame Nhu, the president's sister-in-law, referred to the burnings as “barbecues” and offered to deliver suits. In November 1963, South Vietnamese army officers assassinated Diem and his brother all through a coup.
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