The Network Shown Is Assembled with Uncharged Capacitors X ,Y,and

Multiple Choice

The network shown is assembled with uncharged capacitors X ,Y,and Z,with

And
The switches S₁ and S₂ are initially open,and a potential difference V_ab = 120 V is applied between points a and b.After the network is assembled,switch S₁ is then closed,but switch S₂ is kept open.How much energy is finally stored in capacitor X?

A) 29 mJ
B) 0.48 mJ
C) 0.24 mJ
D) 58 mJ
E) 0.96 mJ