Which conditions must be met to commit changes to the parent scenario?

To commit changes to the parent scenario, it is essential that the scenario is up to date with its parent scenario. This condition ensures that any modifications made to the child scenario are in alignment with the latest data and decisions from the parent. If the child scenario is not current with the parent, discrepancies can arise, which could lead to inconsistencies in data or conflicts in planning. Therefore, being synchronized with the parent scenario is critical for the integrity and accuracy of the changes being committed.

In this context, the other options do not fulfill the necessary criteria for committing changes. For instance, a scenario being fully unique and not linked to any parent implies that it operates independently, which would negate the purpose of making changes that reflect appropriately in the parent scenario. Similarly, having read-only access to the parent scenario would inhibit any modifications, and the existence of child scenarios does not inherently prevent changes from being committed to the parent as long as the updates are in order. Thus, the requirement of being up to date directly addresses the need for coherence in the change process.