The impulse response h[n] of a linear time invariant system

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The impulse response h[n] of a linear time invariant system is given as
h[n] = – 2√2 , n = 2 – 1
4√2 , n = 2 – 1
0, otherwise

If input to the above system is the sequence e^jπn/4, then the output is—

1. 4√2 e^jπn/4
2. 4√2 e^{– jπn/4}
3. 4e^jπn/4
4. – 4e^jπn/4

Correct Option: B

NA