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The wave forms A and B given below are g...

The wave forms A and B given below are given as input to a NAND gate . Then its logic output y is

A

for `t_1` to `t_2` , y = 0

B

for `t_2 ` to `t_3` , y = 1

C

for `t_3` to `t_4` , y = 1

D

for `t_4` to `t_5` , y 0

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The correct Answer is:
C
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