Find the average number of packets (transmitted and queued) along the routes (1-3-4) and (1-2-4), respectively.
a) Route (1-3-4): 5 packets, Route (1-2-4): 3 packets
b) Route (1-3-4): 3 packets, Route (1-2-4): 5 packets
c) Route (1-3-4): 4 packets, Route (1-2-4): 2 packets
d) Route (1-3-4): 2 packets, Route (1-2-4): 4 packets