A spherical body of radius R consists of a fluid of constant density and is in equilibrium under its own gravity. If P(r) is the pressure at r(r<R), then the correct option(s) is (are)
a. P(r=0)=0
b. P(r=2R/3)P(r=3R/4)=8063
c. P(r=2R/5)P(r=3R/5)=2116
d. P(r=R/3)P(r=R/2)=2720