In a Single Channel Manual Soft Cloth Wash, Cars Arrive $75 \%$

Multiple Choice

In a single channel manual soft cloth wash, cars arrive following Poisson distribution at the rate of 8 per hour. It takes an average of 6 minutes to wash a car, and the service time follows exponential distribution. The system utilization would be

A) $75 \%$
B) $80 \%$
C) $133.33 \%$
D) $125 \%$