Who may declare their residence when dwelling in multiple states?

Answer: B — person regularly dwelling in two or more states

The correct choice identifies a person regularly dwelling in two or more states as someone who may declare their residence. This is significant because residence relates to legal and tax obligations, voting registration, and various other civic responsibilities. A person who regularly inhabits multiple states has established a primary connection with those locations, allowing them to designate one state as their official residence for such purposes. This choice underscores the concept of "regularly dwelling," indicating that the individual spends substantial time in each location. This contrasts with those who might be in states temporarily or those who do not maintain an ongoing presence there, which means the claim to residence may not be valid in those scenarios. Establishing a residence requires more than just being physically present; it involves an intent to remain or establish a significant connection to that location. This concept is crucial for understanding the nuances of residency laws and their implications.