Which option correctly defines riwāyat al-akābir ʿan al-aṣāghir?

Peer and Reciprocal Narration, Senior-to-Junior Reports, and Earlier/Later Pupils

• A junior narrates from his senior teacher
• Two contemporaries die in different years
• A Successor directly attributes a report to the Prophet
• A senior narrates from someone junior in age, encounters, or standing