Semiconductor Electronics · Transistors and logic
Identify the correct truth table of the given logical circuit.

- (1)
A B Y 0 0 0 0 1 1 1 0 1 1 1 0 - (2)
A B Y 0 0 1 0 1 0 1 0 1 1 1 0 - (3)
A B Y 0 0 1 0 1 1 1 0 1 1 1 0 - (4)
A B Y 0 0 0 0 1 0 1 0 1 1 1 0
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