A service provider offers Virtual Private LAN Service over its MPLS-enabled network. Currently 6 provider edge switches total are in service. There are 5 customers who subscribed for the service, and every customer has 2 sites attached to every provider edge switch. What is the maximum number of LDP sessions created for pseudowire signaling throughout the service provider network to have full Layer-2 connectivity among all sites of each customer?

A.
15

B.
30

C.
36

D.
45