Concept:The lady who corrected Caliph Umar when he erred in citing a tradition was Aishah.Explanation:Umar ibn al-Khattab once made a mistake while quoting a prophetic tradition.Aishah, the wife of the Prophet, noticed the error and corrected him.She was known for her deep knowledge of Hadith and precise memory.Therefore, among the given options, Aishah is the correct choice.Answer:D. Aishah