Which statement best describes how the high specific heat of water maintain the temperature of earth?

A. By heating and cooling more slowly than land or air 
Higher specific heat capacity means it requires more energy per mol to heat, and it holds onto that heat quite well. 
Hope that helps
A. By heating and cooling more slowly than land or air 
B. By heating and cooling faster than land or air 
C. By heating faster but cooling more slowly than land or air