Final answer:
During the 1960s, protest songs were predominantly a part of the folk revival, with artists like Bob Dylan leading the movement through their socially conscious and politically charged music.
Step-by-step explanation:
The period of the 1960s saw many musicians create protest songs as part of the B. folk revival. This musical movement was deeply intertwined with political activism and was a platform for opposition to the Vietnam War, among other social issues.
Folk singers like Peter, Paul and Mary, Joan Baez, Bob Dylan, and others used their music to express dissent and articulate the antiwar sentiments of the time. Their poignant lyrics became anthems for a generation of activists. Dylan's songs such as "A Hard Rain's A-Gonna Fall" and "Masters of War" were influential in this respect. Despite the mainstream popularity of rock bands like The Beatles, it was the folk genre that was at the heart of the musical protest movement against the Vietnam War and societal injustices during the 60s.
While the rock revolution and the spirit of rebellion certainly flourished, manifesting notably in events like Woodstock, it was the folk revival that primarily characterized the era's protest songs. The music produced during this time was a reflection of the broader social upheavals and served as a voice for change.