The following sequence currents were recorded in a power

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The following sequence currents were recorded in a power system under a fault condition:
I_positive = j 1.653 p.u.
I_negative = – j 0.5 p.u.
I_zero = – j 1.153 p.u.
The fault is

1. line to ground
2. three phase
3. line to line ground
4. line to line

Correct Option: C

We see that all the sequence components are non-zero and
I_a = I_a0 + I_a1 + I_a2
= – j 1.153 + j 1.653 – j 0.5 = 0
We conclude that it is a L-L-G fault.