Referring to the exhibit,

which ports participate in CCP?

A.
TOR-A 1/1 and TOR-A 1/2
TOR-B 1/1 and TOR-B 1/2

B.
TOR-A 1/5 and TOR-A 1/7
TOR-B 1/3 and TOR-B 1/5

C.
TOR-A 1/3 and TOR-A 1/4 and TOR-A 1/5
TOR-B 1/3 and TOR-B 1/4

D.
TOR-A 1/5
TOR-B 1/4