A 50 Hz ac source is connected to a capacitor C in series with a resistance 1 kΩ. The rms voltages measured across them are 5 V and 2 V respectively. Assume the capacitor to be ideal, the peak value of the source voltage and the capacitance are respectively
(a) 7 V, 1.27 μF
(b) 5.3 V, 2.3 μF
(c) 7.62 V, 1.27 μF
(d) 3 V, 2.3 μF