Simple febrile seizure is defined as: (A) Focal seizure, (B) Seizure lasts < 30 min, (C) Seizure within 24 hours of fever onset, (D) All of the above
Answer is C. Simple / typical Febrile seizures

Single episode of generalised seizures
It lasts < 15 min
Seizure within 24 hours of fever onset
No recurrence within 24 hours period.