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Multiple Choice Questions
1. Refer the given figure. Which of the following describes the operation of the circuit?
(A): A LOW input turns Q1 and Q3 on; Q2 and Q4 are off.
(B): A LOW input turns Q1 and Q4 off; Q2 and Q3 are on.
(C): A HIGH input turns Q1, Q2, and Q3 off, and Q4 is on.
(D): A HIGH input turns Q1, Q2, and Q4 on; Q3 is off.
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