Identify the expression for average power.

• A. Pav=\(\frac {V_o I_o}{2}\)sinΦ
• B. Pav=\(\frac {V_o I_o}{2}\)cosΦ
• C. Pav=\(\frac {V_o I_o}{4}\)cos⁡Φ
• D. Pav=2VoIosin⁡Φ