Question

An activist is someone who

passionately believes in a cause
has no interest in supporting a cause
actively discriminates against others
makes a living from giving speeches

Answer 1

check my answer: A?

Answer 2

You are correct the answer is 'A' because it is someone who campaigns for some kind of social change. Someone who's actively involved in a protest or a political or social cause can be called an activist. So 'A' is the closest answer.