Which production strategy allows for variability in hours while maintaining a stable workforce?

The combination strategy is the correct choice because it integrates aspects of both level and chase production strategies, allowing for flexibility in managing labor hours while keeping a stable workforce. In this approach, firms can produce goods at a consistent rate using a stable workforce, but they also retain the ability to adjust production levels in response to demand fluctuations. This means the workforce size remains relatively constant, while hours worked can be varied to align with changes in demand.

In contrast, the level strategy typically focuses on maintaining a consistent output regardless of demand, which means labor hours would remain stable, but it does not allow for the variability in hours that the combination strategy does. The just-in-time production method emphasizes reducing inventory and produces goods as they are needed, which can often lead to a fluctuating workforce rather than maintaining stability. Batch production involves producing goods in groups or batches, which can also lead to fluctuations in workforce hours, thus not aligning with the requirement of maintaining a stable workforce while allowing for variability in hours.