The Land Surface Cools More Rapidly at Night Than Water

The land surface cools more rapidly at night than water does because

A) there is more ocean than land,so more ocean is being heated than land.
B) water,on average,has a specific heat about four times that of land.
C) the amount of energy stored in the water column is less than that stored in land.
D) heat is transferred to deeper depths on land via conduction.