A Portion of a Circuit Is Shown in the Figure $V _ { \mathrm { A } } - V _ { \mathrm { B } }$

Multiple Choice

A portion of a circuit is shown in the figure, and the batteries are ideal. What is the potential difference $V _ { \mathrm { A } } - V _ { \mathrm { B } }$ if $I = 5.0 \mathrm {~A}$ ?

A) $45 \mathrm {~V}$
B) $35 \mathrm {~V}$
C) $63 \mathrm {~V}$
D) $71 \mathrm {~V}$
E) $55 \mathrm {~V}$