mrcgp akt MCQ (SBA): Absence Seizure

A 7-year-old boy presents with recurrent episodes of sudden-onset, brief (<2 minutes) 'absences' where he stares blankly, stops his activity, and does not respond. He sometimes has subtle eyelid fluttering during episodes. He returns to normal immediately afterwards with no post-ictal phase. What is the most likely type of seizure?