A workshop has four machines for assigning four jobs. Each job can be assigned to only one machine. Estimated processing cost (in Rs.) at each machine to complete each task is given in the table below

		Machine
		M1	M2	M3	M4
Tasks	T1	61	92	52	72
	T2	42	49	69	85
	T3	47	59	80	71
	T4	65	70	68	72

The minimum value of total processing cost based on an optimal assignment schedules is

A. 214

B. 220

C. 215

D. 262

Answer: Option B