Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to trade coupons and deals on a message board [title] Read the message board rules thoroughly. [step] Each message board is different from another, so don't assume that you can magically start trading automatically even if you know. Some boards may have posting minimum requirements before a person can start trading, limitations until a person has a certain amount of trading ratings, etc.

Ending1: [title] Get to know your fellow couponers. [step] Aside from trading, the entire point of these message boards is to get and share knowledge with others about scoring great deals. Ending2: Each message board is different, but it's a good idea to read the instructions and guidelines. Some tell you to buy only certain items in exchange for the deal with the other side. Ending3: [substeps] Check the availability of particularly great discounts and long-term restrictions on your message board to see if you can reach a certain peak or optimal rating. [title] Ask the board what they will offer. Ending4: [substeps] If the message board has guidelines, be sure to analyze them. Even though you may want to read up on the rules of the messages board, you may still find it helpful to know the exact rules before an encounter.

Answer format: ending1/ending2/ending3/ending4