A resistor of resistance ${\text{12 }}\Omega$ is connected in series with a cell of negligible internal resistance. The power dissipated in the resistor is $P$. The resistor is replaced with a resistor of resistance ${\text{3.0 }}\Omega$. What is the power dissipated in this resistor?

A.     $0.25{\text{ }}P$

B.     $P$

C.     $2.0{\text{ }}P$

D.     $4.0{\text{ }}P$

D