You Can Be Outside on an Day Where the Air

You can be outside on an day where the air temperature is 85^oF for hours without getting cold.However,you will get cold in 85^oF water before too long unless you are very active.This difference is due to

A) higher heat radiation in water relative to air.
B) higher heat conduction in water relative to air.
C) higher heat convection in water relative to air.
D) higher heat evaporation in water relative to air.
E) higher heat transpiration in water relative to air.