When an a.c. source of e.m.f. E = E0 sin...

When an a.c. source of e.m.f. `E = E_0` sin 100 t is connected across a cricuit, the phase difference between the e.m.f E and the current I in the cirucit is observed to be `pi//4`, as shown in the figure.
If the circuit consists possibly only of RC or RL or LC in series, find the relationship between the two elements

A

`R = 1 kOmega, C = 10 muF`

B

`R = 1 kOmega, C = 1 muF`

C

`R = 1kOmega, L = 10H`

D

`R = 1kOmega, L = 1 H`

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