GKFix MCQ Question

If two waves have angular frequencies ω₁ and ω₂, what is the frequency of the amplitude modulation?

• A. |ω₁ + ω₂|/(2π)
• B. |ω₁ – ω₂|/(2π)
• C. (ω₁ + ω₂)/(4π)
• D. |ω₁ – ω₂|/(4π)