Final answer:
Reenlistment under continuous service conditions may be effected on board the activity from which discharged within a certain time frame following discharge.
Step-by-step explanation:
Reenlistment under continuous service conditions may be effected on board the activity from which discharged within a certain time frame following discharge. The specific timeframe may vary depending on the branch of the military, but generally, it is within 90 days to 1 year. This means that if a service member wants to reenlist, they can do so within this time period without needing to go through a separate recruitment process.