In paragraph 7 of “Letter from a Birmingham Jail,” what did Martin Luther King propose in his remarks after Birmingham's economic community, including its merchants, broke their promises to his followers?

A-He resolved to take direct action by resorting to public sit-ins and marches.
B-He was determined to continue to negotiate in order to appease city officials.
C-In spite of his deep disappointment, he delivered a speech in response to
D-injustice. When pressured, he asked his followers to boycott stores during holidays.