Physics electricity question

A parallel circuit is powered by two identical cells. The circuit has two branches, one connecting a resistor of 4Ω, and the other branch connecting a resistor of 2Ω.
The total current in the circuit is 12A. What is the voltage supplied by each cell?
A 8V
B 10V
C 12V
D 16V
E 20V

Hi, I thought the answer would be D but the correct one is A. Could someone please explain?

hi this should be it.

since there are 2 IDENTICAL cells thus the net voltage as you got in the option D would be halved as we are req to find the voltage by 1 cell only.

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