Pinnacle Corp. budgeted $225,800 of overhead cost for the current year. Actual overhead costs for the year were $211,240. Pinnacle's plantwide allocation base, machine hours, was budgeted at 45,130 hours. Actual machine hours were 57,890. A total of 108,650 units was budgeted to be produced and 98,000 units were actually produced. Pinnacle's plantwide factory overhead rate for the current year is:

a.$5.00 per machine hour

b.$4.68 per machine hour

c.$1.94 per machine hour

d.$2.08 per machine hour