[单选题]
The reason ocean tempera.x.j d1j*p*/ovg6xqi yjf6 n 9ajxje 0tures do not vary drastically is t*5c 8hh(hqjmck ,ybo5 yk-yl3 hat
A. water has a relatively high rate of heat conduction.
B. water is a good radiator.
C. water has a relatively high specific heat.
D. water is a poor heat conductor.
