A Battery with an Emf of 12 V and an Internal

Multiple Choice

A battery with an emf of 12 V and an internal resistance of 1 $\Omega$ is used to charge a battery with an emf of 10 V and an internal resistance of 1 $\Omega$ .The current in the circuit is:

A) 1 A
B) 2 A
C) 4 A
D) 11 A
E) 22 A