Which of the following is NOT a major cartel in Mexico?

The Mongols Motorcycle Club is the correct choice as it is not a major cartel in Mexico. The Mongols are primarily known as a motorcycle club based in the United States with ties to organized crime, but they are not categorized as a drug cartel like the other groups listed.

In contrast, the Jalisco Cartel, Gulf Cartel, and Juarez Cartel are all significant players in the Mexican drug trafficking scene. They are involved in the production and distribution of illegal drugs, influence regions within Mexico, and have extensive operations that can also extend into the United States. These cartels are often recognized for their violent rivalries and complex structures, focusing mainly on controlling drug trade routes and markets. This distinction is essential in understanding organized crime dynamics in Mexico and helps to categorize groups effectively based on their operations and geographical influence.