The Network Shown Is Assembled with Uncharged Capacitors X $\mu$ F, C_Y=5

Multiple Choice

The network shown is assembled with uncharged capacitors X , Y, and Z, with
C_X=3.0 $\mu$ F, C_Y=5.0 $\mu$ F and C_Z=1.0 $\mu$ F 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 charge is finally stored in capacitor Y?

A) 110 µC
B) 54 µC
C) 81 µC
D) 140 µC
E) 160 µC