What characterizes the Collateral Order Doctrine's view on appealable issues?

The Collateral Order Doctrine identifies certain types of orders that can be appealed immediately without waiting for a final judgment in the case. This doctrine allows for appeals of orders that are distinct from the merits of the case, involve substantial legal questions, and are effectively unreviewable after a final judgment.

A key aspect of this doctrine is that the order must resolve an important issue that is separable from the main action. While it does not deal directly with the merits of the case, it addresses significant legal questions that require resolution to avoid irreparable harm or to ensure that rights are not compromised. This is particularly relevant for issues such as qualified immunity in civil rights cases, which can have far-reaching implications beyond the immediate case.

The other choices mischaracterize the nature of appealable issues under the Collateral Order Doctrine. Orders directly related to the merits of the case do not qualify for immediate appeal. The doctrine specifically permits appeal before final judgment in certain circumstances, making the option regarding timing after a final judgment incorrect. Additionally, the notion that an appeal will only be considered if accepted by all parties fails to recognize that the Collateral Order Doctrine allows for appeals without the consent of the opposing party, especially in cases deemed urgent.

Thus, the correct answer