Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: I ' m a teacher and returned to work today . My son is almost 9 months old . The last time he was at the sitter , he was exclusively breastfed . Now he 's getting 3 meals a day and breastmilk .

Question: Why does the narrator need a sitter ?
They are teaching kids .
The narrator needs a sitter to take care of her son while she goes to work.