On April $2,2020,$ shortly after the $$7\mathrm{.}5$ million deposit outflow, Key Bank had borrowed the needed fund in the fed funds market to cover the shortfall in

reserves for the remainder of the month $(29$ days, from $\frac{4}{2}$ to $\frac{4}{30}).$ The required yield on a discount basis was $1\mathrm{.}5\%.$

On April $30,2020,$ Key Bank finally received the first required payments from its mortgages, loan, and T$-$bills, and it also paid off its fed funds loan. Key Bank

was required to establish a loan loss reserve at $0\mathrm{.}5\%$ of the commercial loan value and the bank was in the $35\%$ tax bracket. The bank had not engaged in any

off$-$balance$-$sheet activities.

The following accounting entries record these cash flow transactions.

Accounting entries for mortgages and loan.

Accounting entries for T$-$bills.

Accounting entries for fed funds loan.

Question: What was the dollar amount of $($a$)$ interest income from mortgages and $($b$)$ reduction in mortgage loan balance as of April $30,2021?$

$$210,000\mathrm{.}00$;$$74,487\mathrm{.}05$

$$150,000\mathrm{.}00$;$$134,487\mathrm{.}05$

$$250,000\mathrm{.}00$;$$124,476\mathrm{.}04$

$$189,900\mathrm{.}00$;$$210,136\mathrm{.}80$