Solid foods can generally be started around 6 months of age when the baby is showing developmentally appropriate signs such as leaning towards food that is offered and sitting with little support. It is true that breast milk is the perfect food for the 3-month-old, but this does not answer the mother’s question. The 3-month-old baby is not ready for solid foods, but this does not effectively answer the mother’s question. It is true that babies should receive a variety of grains such as barley and oat due to the risk of arsenic exposure associated with receiving only rice cereal, but this is not the most appropriate response to the mother’s question.