Final answer:
A Terry Stop is considered a "seizure" under the Fourth Amendment, as established by the case Terry v. Ohio, which ruled that police can stop and frisk individuals based on reasonable suspicion.
Step-by-step explanation:
Under the Fourth Amendment, a Terry Stop is indeed considered a "seizure". The foundational case of Terry v. Ohio established that police may stop a person if they have reasonable suspicion that the person has committed or is about to commit a crime. They may also frisk the suspect for weapons if there is a reasonable suspicion that the suspect is armed and dangerous. This type of stop does not violate the Fourth Amendment because it is based on specific, articulable facts amounting to more than a mere hunch.
The Fourth Amendment protects citizens from unreasonable searches and seizures and requires that no warrants shall issue but upon probable cause. However, the Supreme Court rulings, such as United States v. Jones and New Jersey v. T.L.O., clarify that there are exceptions to the warrant requirement, notably in exigent circumstances and where there is no reasonable expectation of privacy.
Therefore, the answer to the question is A) Yes, a Terry Stop is a "seizure" under the Fourth Amendment.