There are five possible theories: Christianity, hallucination, myth, conspiracy and swoon.
|1||Jesus died||Jesus rose||Christianity|
|2||Jesus died||Jesus didn't rise—apostles deceived||Hallucination|
|3||Jesus died||Jesus didn't rise—apostles myth-makers||Myth|
|4||Jesus died||Jesus didn't rise—apostles deceivers||Conspiracy|
|5||Jesus didn't die||Swoon|
There are no other possibilities.
"Myth" in this context means the resurrection stories are not historically true but are intended as narratives of morality and religious meaning; not lies, per se, since pedagogy was the intent, not overt deception.This, too: "What did the Disciples See? A Closer Look at the Resurrection Appearances"