Over 10 minutes observation interval, 20 subscribers initiate a call. Total duration of calls is 2400sec. Calculate load offered to network by the subscribers and average subscriber traffic?

Over 10 minutes observation interval, 20 subscribers initiate a call.

1.	Over 10 minutes observation interval, 20 subscribers initiate a call. Total duration of calls is 2400sec. Calculate load offered to network by the subscribers and average subscriber traffic?
A.	4e and 0.1e respectively
B.	2e and 0.5e respectively
C.	3e and 1.5e respectively
D.	1e and 0.2e respectively
Answer» B. 2e and 0.5e respectively