How long did it take michelangelo to do the sistine chapel?

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.

C. she wanted to answer sexist rumors about her paintings.

This would be tesserae.

B) 1920s .. is the answer