Don't forget to tell Tom to go home! 求解答!需附解答思路!

Don't forget to tell Tom to go home! 求解答!需附解答思路!
A Yes,I will.
B No,I won't.
选A还是B?表示会告诉Tom的.
这题我觉得选A或B都可以因为
假如针对Don't forget 而言选B
但针对tell Tom to go home 而言又应该选A
可是答案只肯能有一个
所以我不确定应针对Don't forget还是tell Tom to go home来回答！
去各位帮帮忙解答一下！