Final answer:
c) 10. The ideal span of control for emergency operations is 10 or fewer.
Step-by-step explanation:
The correct answer is c) 10. Most incident management systems recognize an ideal span of control of 10 or fewer for emergency operations. Span of control refers to the number of individuals a supervisor can effectively manage. In emergency operations, it is important to maintain a manageable span of control to ensure effective communication, coordination, and decision-making.