An Old Office Building in Mandaluyong was purchased by Henry for $120$ million pesos. It Is expected that the Gross Potential income of the property is $30$ million with a $12\%$ vacancy rate and a credit cost of $1$ million. Operating expense is computed as $10$ million. The annual mortgage is set at P$5\mathrm{.}5$M with P$500$K interest earned. Equity is at P$50$ million. Overall Rate of Return? Show the solution! Select the correct answer. A$.12\mathrm{.}83\%$ B$.10\mathrm{.}50\%$ C$.13\%$ D$.11\%$