Which of the following will al ow the fax machine to function properly?

The customer has DSL service and they are attempting to install a fax machine on the same line.
Which of the following will al ow the fax machine to function properly?

A.
Change the line equalizer settings.

B.
Connect a DSL filter between the fax machine and the RJ-11 telephone jack.

C.
Reduce the modem speed on the fax machine.

D.
Change the RJ-11 telephone jack to a RJ-45 jack.