Bottlefish Pty Ltd produces a range of products through several processes. Total overhead costs for process A are $200,000 and overhead is allocated to units of product on the basis of $5 of overhead for each hour of direct labour employed. If 4,000 units of product D pass through process A, requiring 1,500 direct labour hours, what is the overhead from process A to be applied to product D?

a) $7,500

b) $13,333

c) $20,000

d) $26,667