Following a generalized tonic-clonic seizure, the majority of patients are likely to be:

Following a generalized tonic-clonic seizure, it is common for patients to experience a state of confusion. This postictal state, which occurs after the seizure has ended, is characterized by reduced awareness and responsiveness. During this phase, the brain is recovering from the electrical discharge that occurred during the seizure, leading to temporary cognitive deficits.

Patients may not fully understand their surroundings, might be disoriented, and could struggle to follow commands or respond to questions. This confusion can last for a variable duration, ranging from minutes to several hours, depending on the individual and the nature of the seizure.

In contrast, other states such as being apneic (which refers to a temporary cessation of breathing), hyperactive (increased activity or agitation), or simply awake and alert would not typically follow the postictal phase of a generalized tonic-clonic seizure. Therefore, the likelihood of confusion following a seizure is a key reason why this answer is the most appropriate.