What might AIT durations range from, depending on the complexity of the MOS?

The correct answer highlights that AIT (Advanced Individual Training) durations can vary significantly based on the complexity of the Military Occupational Specialty (MOS). For certain MOSs, especially those that require specialized skills and knowledge, training can indeed last from a few weeks up to over a year. This timeframe allows for comprehensive instruction in complex subjects, practical training, and hands-on experience, ensuring that service members are fully prepared for their roles.

Shorter training periods might apply to less complex specialties that do not demand extensive technical skills, which is why durations exceeding a year are also possible. Therefore, the range indicated in the correct answer accurately reflects the variability in training length due to MOS complexity, ensuring that individuals receive the necessary depth of training pertinent to their specific career field.