Read the following passage carefully and answer the questions given below it.
 It is generally acknowledged that children learn a lot from their parents. It is not so commonly admitted that parents learn a great deal from their children. As adults, it is easy to assume that we are always right, but the laugh was on me one beautiful day.
 My daughter Kashmira knew how much I loved flowers. One day when she was of nine years, she picked some branches from our neighbour's blossoming fruit tree. Realising she intended to please me, I didn't scold her, but chose a different approach. "These are lovely, dear, but do you realise that if you had left them on the tree, each of these blossoms would have become a cherry?" "No, they wouldn't have", she said firmly.
"Oh, yes they would have. Each of these blossoms would have grown into a cherry". "Well okay, mother, if you insist", she finally conceded, "but they were plums last year".

Q:

"The laugh was on me" means that- 

• 1
  people laughed at the mother.
• 2
  the mother laughed at herself.
• 3
  the mother was caught in the wrong.
• 4
  the daughter was wrong.
• 5
  None of these