If you have received the offer from EA and RD, if you have just received it and haven't finally confirmed that you must go to their school, that's nothing.

If you confirm, please press and you must leave. You must go unless there are special circumstances. If it is confirmed, it should not be possible to go to other schools.

If you are ED's offer, then you must go by default when you receive it. Be sure to go unless there are special circumstances.

Ed was admitted. You have to go.

EA\RD is accepted, and you can choose whether to go or not, which needs further confirmation.