Final answer:
Adult life jackets cannot be safely fitted on an infant as they are not designed for the size and safety requirements of infants. Infants require US Coast Guard-approved life jackets that are specifically sized for their needs.
Step-by-step explanation:
Can adult life jackets be fitted on an infant? The answer to this question is b. No. Adult life jackets are designed for individuals with a certain weight range and body circumference, not taking into account the unique body proportions and safety requirements of an infant. Using an adult life jacket on an infant can result in improper fit, which could compromise the infant's safety on the water. Infants should always be outfitted with properly-sized life jackets that are specifically designed and US Coast Guard-approved for infants. This ensures that they are provided with the best possible protection and buoyancy.