Final answer:
The answer is 6 months. Documentation of the mother's behavioral risk history would be required if breastfeeding occurred within the past 6 months.
Step-by-step explanation:
The answer to your question is b. 6 months. Documentation of the mother's behavioral risk history would be required if breastfeeding occurred within the past 6 months. Breastfeeding provides numerous benefits to both the mother and the infant, including the transfer of antibodies through breast milk, which boosts the infant's immune system. The first 6 months of a baby's life are crucial for establishing breastfeeding and receiving the necessary nutrition and protection from breast milk.