Final answer:
Tequila must be made in the Tequila region of Mexico and from Blue Agave, which corresponds to answer choice d) 2 & 3 only. Aging is not a requirement for the spirit to be designated as Tequila.
Step-by-step explanation:
The correct answer to the question about what Tequila must be is d) 2 & 3 only: made in the Tequila region of Mexico and made from Blue Agave. Tequila does not have to be aged, which eliminates options involving statement 1. According to the Mexican law and the standards for Tequila, for it to be labeled as such, it must be produced in the Tequila region, primarily in the state of Jalisco, and must be made from at least 51% of the Blue Agave plant.
While there are aging classifications for different types of Tequila, including Blanco (unaged), Reposado (aged at least 2 months), Añejo (aged at least 1 year), and Extra Añejo (aged at least 3 years), aging is not a requirement for the initial definition of Tequila. Therefore, having a designation of Tequila is more about geographic origin and the agave source rather than the aging process.