A Convection Oven Differs from a Deck Oven in That

A convection oven differs from a deck oven in that

A) the convection oven has a fan to circulate heat, the deck oven does not.
B) food is placed directly on a heated solid rack in convection ovens and goes on wire racks in a deck oven.
C) a deck oven allows for the use of steam during cooking, the convection oven does not.
D) a deck oven allows for very low temperature cooking, the convection oven does not.