For the circuit shown in the figure, the voltage and current

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For the circuit shown in the figure, the voltage and current expressions are
v(t) = E₁ sin (ωt) + E₃ sin (3 ωt) and
i(t) = I₁ sin(ωt – φ₁) + I₃ sin (3 ωt – φ³) + I₅ sin (5 ωt)
The average power measured by the Wattmeter is

1. 1/2 E₁ I₁ cos φ₁
2. 1/2 [E₁ I₁ cos φ₁ + E₁ I₃ cos φ₃ + E₁ I₅]
3. 1/2 [E₁ I₁ cosφ₁ + E₃ I₃ cosφ₃]
4. 1/2 [E₁ I₁ cosφ₁ + E₃ I₁ cosφ₁]

Correct Option: C

Average power,