Final answer:
When a sailor is a single parent and cannot take on sea duty, they should request a transfer to a shore-based assignment.
Step-by-step explanation:
When a sailor is a single parent and an assignment to sea duty would not be feasible, the sailor should request a transfer to a shore-based assignment. This would allow the sailor to remain on land and be able to take care of their child without the need for long deployments. By requesting a transfer, the sailor is demonstrating that they have a valid reason for not being able to take on sea duty.
Accepting the sea duty and arranging for childcare during deployments may not be feasible or ideal for the sailor, especially if they don't have a strong support system in place. Declining the assignment without providing any justification may not be a suitable option, as the sailor would need to provide a valid reason for not being able to fulfill the assignment. Consulting with fellow sailors for advice on the best course of action may be helpful, but ultimately, the sailor should take the necessary steps to request a transfer.