The Network Shown in the Figure Is Assembled with Uncharged

Multiple Choice

The network shown in the figure is assembled with uncharged capacitors X, Y, and Z, with CX = 7.0 μF, CY = 7.0 μF, and CZ = 6.0 μF, and open switches, S₁ and S₂. A potential difference V_ab = +120 V is applied between points a and b. After the network is assembled, switch S₁ is closed for a long time, but switch S₂ is kept open. Then switch S₁ is opened and switch S₂ is closed. What is the final voltage across capacitor X?

A) 94 V
B) 87 V
C) 79 V
D) 71 V
E) 63 V