Were There Wildfires Before Humans? (Choose the Best Answer

Were there wildfires before humans? (Choose the best answer.)

A) Yes, but they were very small because they had natural causes.
B) Yes and they were caused by natural igniters like lightning strikes or asteroid impact.
C) No. Humans are the only cause of wildfires.
D) No. There weren't trees before humans and so there couldn't be wildfires.
E) Maybe, but there is no record to find out.