In which scenario is a search deemed legal under the Fourth Amendment according to MN v Carter?

The scenario where a search is deemed legal under the Fourth Amendment in the context of MN v. Carter is primarily focused on the aspect of consent, specifically from a householder. In this case, the court established that a homeowner, or any person with authority over a residence, has the right to consent to a search of their property. Therefore, if a householder provides consent for law enforcement to conduct a search, it is considered lawful and does not violate the Fourth Amendment's protections against unreasonable searches and seizures.

This principle is rooted in the understanding that a person who has control over a space has the authority to determine whether or not others can enter that space. The decision in MN v. Carter emphasized respecting the rights associated with ownership or control of a residence, reinforcing the legal standard that a search conducted with a householder's consent is valid.

Other options suggest scenarios where searches are conducted based on belief or general consent. However, for a search to be deemed legal under the Fourth Amendment in this context, it is crucial that the consent comes from someone with the authority to grant it, like a householder. Thus, the established legal precedent ensures that an individual's rights are respected while balancing law enforcement needs.