Please answer
What is Abstract Expressionism?

A development of abstract art that originated in New York in the 1940s and 1950s and aimed at subjective emotional expression with particular emphasis on the creative spontaneous act (e.g., action painting). Leading figures were Jackson Pollock and Willem de Kooning.
So I would say A.

I’m so sorry if I’m wrong 3>

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.

Answerthe third and fourth;