Being "on the bus" meant what in the Electric Kool-Aid Acid Test?

Question

1. To be hopelessly square and part of The System
2. To be part of the Prankster mindset
3. To become part of the Civil Rights movement

Is it 1, 2, or 3?

Answer 1

http://en.wikipedia.org/wiki/Electric_Kool_Aid_Acid_Test
2.Prankster mindset