Zincsupp Pty $($Ltd$)$ is expecting a cash shortfall of R$80000$ in March and one of R$90000$ in April. The financial manager of the company has arranged for an overdraft facility with a local bank at a cost of $12\%$ per annum, paid on the outstanding balance at the end of each month. It is expected that during May, the company will receive a large payment and will repay the balance on the facility and not experience another shortfall in the financial year. Determine the total cost of financing the shortfall over March and April.

a$.$

R$800$

b$.$

R$1700$

c$.$

R$2000$

d$.$

R$2500$