Convection ovens are ovens that are advertised to cook food more evenly than a standard thermal oven. Which statement best explains how a convection oven works?

a
Hot air is transferred through density differences with cool air rising and hot air sinking.
b
Hot air is transferred through molecule to molecule contact.
c
Hot air is transferred through heat being radiated from a thermal burner.
d
Hot air is transferred through density differences with hot air rising and cool air sinking.

a

Hot air is transferred through density differences with cool air rising and hot air sinking.