Suppose Operation X Feeds Directly into Operation Y

Multiple Choice

Suppose operation X feeds directly into operation Y.All of X's output goes to Y, and Y has no other operations feeding into it.X has a design capacity of 80 units per hour and an effective capacity of 72 units per hour.Y has a design capacity of 100 units per hour.What is Y's maximum possible utilization?

A) 80%
B) 72%
C) 90%
D) 70%
E) None of the above.