Final answer:
Bob Dylan, Joan Baez, and Tom Paxton were significant figures in the second folk music boom, using their music to address social issues during the 1960s.
Step-by-step explanation:
Bob Dylan, Joan Baez, and Tom Paxton all have in common that they were important musicians during the second folk music boom. This period is notable for its association with social movements in the 1960s, particularly in America, where music became a powerful tool for protest and change. Bob Dylan's music, with its poetic lyrics and social commentary, made him a leading figure in this era. He, alongside Joan Baez and others, used their music to address issues like civil rights and the Vietnam War. Bob Dylan's songs, with their rich imagery and strong messages, resonated with many and are considered to have had a significant impact on the social consciousness of the time.