Final answer:
The question does not provide sufficient context to specify the exact number of personnel required, but highlights the need for a skilled healthcare team due to potential risk factors related to maternal age and other conditions.
Step-by-step explanation:
The number of people required to be present to manage a baby if risk factors are present cannot be specified without further context. However, it is important to ensure that a skilled healthcare team is available to address any complications that may arise due to risk factors such as the mother's age or medical conditions affecting the fetus. Factors like the incidence of trisomy 21, which increases with maternal age, as well as preparations for potential blood loss, suggest that the team should include professionals with expertise in neonatal care and obstetrics.