Which statement would be the best evidence that heat transfer through radiation has occurred and why

A) A pan gets hot on a stove. Radiation requires molecule contact.

B) on a windy day you feel colder this is because more heat is removed from your body.
C) At several feet from fire you still feel the heat. Heat is transferred though the air.
D) An oven uses fans to heat up the food inside faster. Radiation is the most efficient form of heat transfer.