Concept:A question tag is a short question added to a statement, and a positive statement normally takes a negative tag.Explanation:The statement is "Mother said she saw Alfred", which is positive in meaning.The part being confirmed is "she saw Alfred".The verb is "saw" (past tense), and the subject is "she".So the negative question tag must be "didn't she?"Therefore, the correct option is D.Answer:D. didn't she