Consider a three sequentially stepped process named as Process A$,$ Process B$,$ and Process C$.$ Input comes into Process A$.$ Output from A goes into Process B$.$ Output from B goes into Process C$.$ Output of $C$ is the final output. Suppose that it takes $2$ minutes per unit in Process $A,3$ minutes per unit in Process B and $1$ minute per unit in Process C$.$ Suppose further that Process A receives input at the rate of $30$ per hour. Where would you place a buffer?

Multiple Choice

In front of Process B

In front of both Process B and Process C

In front of Process $A$

In front of Process C

In front of Processes $A,B,$ and C

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