How does joinder enhance judicial economy?

The choice correct in this context is focused on how joinder reduces the number of separate lawsuits. Joinder is a procedural mechanism that allows multiple parties or claims to be combined in a single lawsuit. This approach enhances judicial economy because it streamlines the judicial process, preventing the need for multiple trials on related issues or claims that could lead to inconsistent results.

By consolidating related claims or parties, joinder helps minimize the court's workload and resources while also reducing the burden on litigants. Fewer lawsuits mean that court resources are utilized more efficiently, and parties can resolve their disputes in a more timely manner without the complications and delays that often arise from multiple, parallel proceedings.

Other options describe aspects that do not promote judicial efficiency. For instance, allowing multiple trials to proceed simultaneously could actually complicate the process and lead to duplicative efforts. Increasing the complexity of litigation contradicts the goal of simplifying processes to enhance judicial economy. Lastly, providing less consistent judicial decisions undermines confidence in the legal system, which also detracts from efficient judicial administration. Therefore, the focus on reducing the number of separate lawsuits captures the essence of how joinder serves to enhance judicial economy.