Answer:
C. Use the old process.
Step-by-step explanation:
Multi-factor productivity is nothing but the measure that gives clear picture about the overall efficiency based on the labor and capital inputs used in the production process.
Total cost = Labour cost + Capital cost
Total cost = $240 + $640
Total cost (old) = $880
Total cost (new) = $160 + $1000
Total cost (new) = $1160
Multi-factor productivity = Outlay per hour * 8 / Total cost per hour per 8 hours
MFP (old) = 100 * 8 / 880 = 0.91
MFP (new) = 125 * 8 / 1160 = 0.86
So, based on MFP, Use the old process as it is more efficient.