The Capacitive Network Shown in the Figure Is Assembled with Initially

Multiple Choice

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch $\mathrm { S }$ in the network is kept open throughout. What is the total energy stored in the seven capacitors?

A) $96 \mathrm {~mJ}$
B) $48 \mathrm {~mJ}$
C) $144 \mathrm {~mJ}$
D) $72 \mathrm {~mJ}$
E) $120 \mathrm {~mJ}$