Which of the Following Statements Are True Concerning Station Outlets

Which of the following statements are true concerning station outlets?
1. Check valves are safety valves that close automatically when an adapter is disengaged from the outlet.
2. Station outlets do not have ASSS connections.
3. Quick-connect adapters use noninterchangeable thread fittings.
4. Check valves must hold a minimum of 200 psig.

A) 3 and 4
B) 1, 3, and 4
C) 2 and 4
D) 1 and 2