Multi-select problem: How does the next paragraph end?

How to send a free fax
Find a service that allows you to send faxes over the internet.
There's a list of services at the bottom of this page, or you can search for others.
Visit the terms of service for the website you select.

OPT:
[A]. Some of the fees are tax deductible, while others are free. Some sites only accept faxes for payment only if your email address is active.
[B]. Click the blue link that says open " fax system. " Enter your fax number then click " ok.
[C]. " faxes " means that you send a new-page service, and " websites " means you send new-page faxes. To find a link to one of these sources, visit their website at www.fap.gov.
[D]. Be aware that some websites that send free faxes will send your fax with an ad on the first page, or will require you to consent to receive advertisements over email. If you're concerned about these things happening, check the tos.
[D].