Concept:The Prophet Muhammad (SAW) had sons from different mothers, and one of them died on the day of Eid-ul-Adha.Explanation:The Prophet (SAW) had three known sons: Qasim, Abdullah (also called Tayyib), and Ibrahim.Ibrahim was born to Maria al-Qibtiyya, whereas Qasim and Abdullah were born to Khadija.Ibrahim died while still an infant, and his death occurred on the day of Idul Adha (Eid-ul-Adha).This matches option D, not Tayyib or Qasim.Answer:D. Ibrahim