Darwin, Inc., provided the following information for a production factor:
Budgeted production ......... 10,000 units
Actual production ........... 9,500 units
Budgeted input ............ 9,750 gallons
Actual input ............. 8,950 gallons

Required
What is the partial operational productivity ratio of the production factor?
a. 0.97 unit per gallon.
b. 1.02 units per gallon.
c. 1.06 units per gallon.
d. 1.12 units per gallon.
e. None of the above.