E6F08

Why are optoisolators often used in conjunction with solid-state circuits that control 120 VAC circuits?

1. AOptoisolators provide a low-impedance link between a control circuit and a power circuit
2. BOptoisolators provide impedance matching between the control circuit and power circuit
3. COptoisolators provide an electrical isolation between a control circuit and the circuit being switched
4. DOptoisolators eliminate the effects of reflected light in the control circuit

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