Where was aztlán?

the american southwest and northwest

texas and california

mexico and the american southwest

meso-america and south america

This the answer is the legendary ancestral home of the Aztec peoples. In Aztec perspective, Aztlan means "Lands to the North" (4 corners). Aztecah is the Nahuatl word for "people from Aztlan". The place Aztlan is mentioned in several ethnohistorical sources dating from the colonial period, and each of them give different lists of the different tribal groups who participated in the migration from Aztlan to central Mexico, but the Mexica who went on to found Mexico-Tenochtitlan are mentioned in all of the accounts. Historians have speculated about the possible location of Aztlan and tend to place it either in northwestern Mexico or the southwest US, although there are significant doubts about whether the place is purely mythical or represents a historical reality.

which time period is this? or is this story fictional, i'm going to need more info to answer this question