Nishant, Tavieen and Manas are confused with the formula for deriving TC:
• Nishant says: `TC = TVC + TFC`
• Tavleen says: `TC = AC xx "Output"`
• Manas says: `TC = sumMC + TFC`
Identify who amongst them is correct.
A. Nishant
B. Manas
C. Tavleen
D. All of them
