Determine the Current in The $18 - \Omega$ Resistor for the Circuit Shown in the Figure Assuming That

Multiple Choice

Determine the current in the $18 - \Omega$ resistor for the circuit shown in the figure assuming that the batteries are ideal.

A) $0.50 \mathrm {~A}$
B) $0.25 \mathrm {~A}$
C) $1.0 \mathrm {~A}$
D) $0.75 \mathrm {~A}$