Given the following information about a fully amortizing loan, calculate the lender's yield $($rounded to the nearest tenth of a percent$)$: loan amount: $$166,950$; term: $30$ years; interest rate: $8\%$; monthly payment: $$1,225\mathrm{.}00$; discount points: $2.$

A$)7\mathrm{.}7\%$

B$)8\mathrm{.}0\%$

C$)8\mathrm{.}2\%$

D$)10\mathrm{.}0\%$