S.A Stands for Sine Anno.
I believe the correct answer is C. The other answers give outside information that doesn’t correlate with the promoted question.
Answer:
Minimalism emerged in New York in the early 1960s among artists who were self-consciously renouncing recent art they thought had become stale and academic. A wave of new influences and rediscovered styles led younger artists to question conventional boundaries between various media
Explanation: