In a conversation about how to spend a holiday， a student says， "I have plan to go traveling with my family". Which of the teacher‘s feedback will best keep up the communication as well as help the student correct his syntax error？

A. "You are wrong. You should say "I have planned to go traveling with my family"."
B. "There is a mistake in what he said. Does anyone notice it？ "
C. "You have plan to go traveling？ "
D. "You should pay attention to the tense of the sentence."