The graph above gives the land surface air temperatures and the sea surface water temperatures from 1950 to 2016. Global warming encompasses the changes in climate and temperature around the globe from the oceans to on land. However, when
studying the warming of Earthy's land and water temperatures, a difference between the two can be observed. From the graph, it
can be seen along most of the graph that the water temperature of the sea's surface remained lower than that of the land's surface
air temperature. What unique characteristic of water allows for this phenomenon to occur?

a. water’s heat of fusion
b. water’s conductivity of heat
c. water’s heat of vaporization
d. water’s specific heat capacity