When applying a CNOT gate to two qubits, which qubit acts as the control and which one acts as the target?

When applying a CNOT gate to two qubits, which qubit acts as the control and which one acts as the target?
A . The first qubit is the control, and the second qubit is the target
B . The second qubit is the control, and the first qubit is the target
C . It doesn’t matter, as the CNOT gate is symmetric
D . Both qubits simultaneously act as control and target

View Answer

Answer: A