The following sentence has been split into four segments. Identify the segment that contains a grammatical error.

He will make mistakes, but he will learn / by making mistakes. So, dear parents, / once you put the money in your / children’s little pockets, forget all on it.

A

children’s little pockets, forget all on it

B

once you put the money in your

C

by making mistakes. So, dear parents,

D

He will make mistakes, but he will learn