Which of the following is a correctly formatted Inmarsat-C address book entry for sending communications to a fax machine number 516-229-4339 in Long Beach, CA, U.S.?

Correct Answer: Option B — 15162294339

Addressing a shoreside fax machine via Inmarsat-C requires the international dialing format. For a U.S. number (country code 1), the entry is the country code followed by the area code and subscriber number. The correct format is 15162294339, omitting dashes or leading zeros used in domestic dialing.