which cable is used to connect the modem to the router?

When using a modem to provide out-of-band access to a Cisco router, which cable is used to
connect the modem to the router?

A.
DB-25 to RJ-45

B.
RJ-45 to RJ-45

C.
RJ-44 to RJ-45

D.
DB-9 to RJ-45

E.
DB-45 to RJ-45