The Ramapo Company produces two products, Blinks and Dinks. They are manufactured in two departments, Fabrication and Assembly. Data for the products and departments are listed below.

Product	Number of Units	Labor Hours Per Unit	Machine Hours Per Unit
Blinks	1,000	4	5
Dinks	2,000	2	8

All of the machine hours take place in the Fabrication department, which has an estimated overhead of $84,000. All of the labor hours take place in the Assembly department, which has an estimated total overhead of $72,000. The Ramapo Company uses a single overhead rate to apply all overhead costs. What would the single plantwide rate be if it was based on machine hours instead of labor hours?

a.$19.50 per machine hour

b.$7.43 per machine hour

c.$4.00 per machine hour

d.$9.00 per machine hour