One of the sahābah considered most knowledgeable in Tafsīr was
Ali Ibn ‘Ab ī Tālib
Ubay b. Ka'ab
Abdullah “Ibn Abbas (Abdullahi) was considered most knowledgeable in Tafsir among the scholars (Sahabah)
Sa'ad b. ‘Ab ī Waqās
Correct answer is C
No explanation has been provided for this answer.