Two technicians are working at the service center and both of them are skillful enough for both Tire Replacement and Oil Change. Once finishing the job for a customer, a technician will take care of the next customer waiting in line. When both technicians are idle, the one who finished the last job earlier will take care of the next incoming customer. The times taken by the two jobs by any of the technicians follow the probability distributions in the following tables. You are required to simulate the operations of the auto service center for 15 customers. Before answering the following questions, you may use the following tables to determine the cumulative probability distributions and assign random number intervals for customer arrivals, customer service types, and time needed for both types of services. You may also simulate the operations of this auto service center for the 15 customers using the random numbers given in the following table. The "Start Time" is the time point when the job for the customer starts and the "Finish Time" is the time point when the job for the customer finishes.

For customer arrivals, the random number interval assigned to the Time between Arrivals of 5 minutes is :

a. 0.0000-0.1499
b. 0.1500-0.3999
c. 0.4000-0.7999
d. 0.8000-0.9999
e. None of the above