In the circuit shown below, C1 = 10.0 µF, C2 = 20.0 µF, and C3 = 25.0 µF. If no capacitor can withstand a potential difference of more than 100 V without failure, what are (a) the magnitude of the maximum potential difference that can exist between points A and B and (b) the maximum energy that can be stored in the three-capacitor arrangement?