Mark the letter A, B, C, or D to indicate the sentence is the cleft sentence.Câu hỏi Her parents always teach her how to make action plans for every task. A. It's her parents who always teach her how to make action for every task. B. It's her who her parents always teach how to make action plans for every task. C. It's how to make action plans for every task which her parents always teach her. D. It’s every task which her parents always teach her how to make action plans for.