A farmer meets his short$-$term capital needs by establishing a line of credit and borrowing as follows. All the borrowed money plus interest is paid back on August $1$ when the crop is sold. Calculate the total amount of interest paid, assuming a $3\%$ annual interest rate. Assume interest accrues on only the outstanding balance $($ie$.$ interest does not compound$).$

March $1$ $$15,000$

April $1$ $$8,000$

May $1$ $$3,000$

July $1$ $$12,000$

A$.$

$$320$

B$.$

$$1,140$

C$.$

$$95$

D$.$

$$1,900$