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The operation Management Computer Lab at the PUPR has two student software statistical package assignment assistant. The students form a single line to wait for help from the computer laboratory assistant. The students are helped first come, first served. On the average students arrive for help, following a triangular distribution (x1 = 5, y1 = 0).(x2 = 15, y2 = ?) minutes. Each computer laboratory assistant, on the average can help 1 student per 15 minute (add all the numbers in your student ID) minutes and the service rate follow an exponential distribution. Develop the arrival equation. O a. Y = 25x - 1/5 O b.Y = x/25 - 1 OC. Y = x/25 - 1/5y O d. Y = x/25 - 1/5