Final Answer:
The minimum number of months of active duty required after recruit training to apply for brig staff duty is 18 months. Therefore the final answer is C. 18 months.
Step-by-step explanation:
The minimum number of months of active duty required after recruit training to apply for brig staff duty is 18 months. This means that individuals must complete at least 18 months of active duty service before becoming eligible for assignment to brig staff duty.
In the military, the process of advancing to specific duties or roles often involves a combination of training, experience, and time in service. In this case, the requirement ensures that individuals have gained a certain level of experience and understanding of military operations before taking on responsibilities associated with brig staff duty.
Brig staff duty typically involves administrative and logistical tasks within a military brigade. The 18-month requirement serves to ensure that individuals have sufficient exposure to the military environment, have acquired relevant skills, and are better prepared to handle the responsibilities associated with brig staff duty.
Therefore the final answer is C. 18 months.