points Seve An army has infinite number of tanks. The tank repair unit only have space for two tanks. Tanks need maintenance 20 times per year, and maintenance takes an average of 20 days (assume a year has 200 labor days available). Assume exponential inter arrival and service times. There is only one hanic. Compute how many tanks in the average are in the tank repair unit. a. 2 tanks Ob.1.5 tanks Oc. 10 tanks Od. 1.42 tanks