Final answer:
The song by The Byrds that was banned for supposed drug references is a. 'Eight Miles High'.
Step-by-step explanation:
The Byrd's song that was banned from radio for being considered references to drugs is a) Eight Miles High. This song was part of the rock and roll movement that not only included elements of musical innovation but also often carried overtones of social and cultural rebellion.
The Byrds were known for their influential role in the music scene of the 1960s, alongside other artists like Bob Dylan, who was famous for using music as a catalyst for social change and protest, particularly noted in his songs like "The Times They Are a-Changin'".