Final answer:
A. True
Fontanelles in the infant's skull enable easier passage through the birth canal.
Step-by-step explanation:
Fontanelles, or 'soft spots', in an infant's skull permit some bone movement, enabling the infant to pass more easily through the birth canal. These fontanelles are broad areas of fibrous connective tissue that form fibrous joints between the bones of the skull. During birth, the fontanelles provide flexibility to the skull, allowing the bones to push closer together or overlap slightly. This aids in the movement of the infant's head through the birth canal.