The most relevant option that directly connects your learning goal of becoming a licensed head lifeguard to your aspiration of owning your own lifeguard crew agency is:
Becoming a licensed head lifeguard will help you train the crew needed to effectively run your own lifeguard agency.
This option highlights the practical skills and knowledge you will gain as a head lifeguard, which are essential for training and managing a lifeguard crew in your own agency. It emphasizes the importance of understanding the operational requirements and standards necessary to ensure safety and efficiency, which will be crucial for the success of your future business.