For the circuit shown in the figure

A

the current I through the battery is 7.5 mA

B

the potential difference across $$R_L$$ is 18 V

C

ratio of powers dissipated in $$R_1$$ and $$R_2$$ is 3

D

if $$R_1$$ and $$R_2$$ are interchanged, magnitude of the power dissipated in $$R_1$$, will decrease by a factor of 9.