Combinational Logic Circuits

Based on the indications of probe A in the figure given below, what is wrong, if anything, with the circuit?

A The logic probe is unable to determine the state of the circuit at that point and is blinking to alert the technician to the problem.

B The output appears to be shorted to V_cc, but is being pulsed by the pulser.

C The output appears to be LOW, but is being pulsed by the pulser.

D Nothing appears to be wrong at that point.

ANS:D - Nothing appears to be wrong at that point.

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