My little brother leaves his toys everywhere. It used to make me really angry because I had to pick them up. But then I realized he's still small and learning. So now, I help him put them away, and we even make a game out of it. It's my responsibility to teach him, and it feels good to be a helpful big sister.
Which of the following would be the most suitable title for this short story?
A) A Messy House
B) Learning to Be Responsible Together
C) My Annoying Brother
D) Playing Games All Day