Which is true when there is a circumstance rule with no corresponding higher version?

In a scenario where there is a circumstance rule without a corresponding higher version, it indicates that the rule is essentially operating as the highest available version for that specific circumstance. When no higher version exists, the lower version becomes the active rule for processing. Thus, the correct interpretation of this situation is that a higher version of the rule will not simply terminate the lower version; instead, it implies that the circumstance rule is in effect and will be executed when the conditions specified are met.

Circumstance rules are designed to allow specialized versions of a rule to be executed under certain conditions, but if there is no higher version available, the existing version is utilized as the applicable logic for the defined circumstances. This means that without a higher version, the circumstance rule does not get overridden and continues to serve its intended purpose.

This scenario highlights the functionality of circumstance rules in Pega, which enable more granular control over rule execution depending on specific criteria without overlapping with higher-level versions that may not exist.