When Studying the Motivations of a Protest Movement, Why Is

When studying the motivations of a protest movement, why is it necessary to consider what the protestors think and feel?

A) Perceptions reveal the interactions among ideas, mobilization, and the broader environment, which provide the goals.
B) The protests are works in progress, indeed, a form of art.
C) Grievances cannot be manufactured, that is, preconceived.
D) Because people don't really know what they want, leaders step forward and exploit what they "think and feel."