Which of the following is a common requirement for obtaining a gun license?

A common requirement for obtaining a gun license is undergoing a background check. This process is crucial for ensuring that individuals who wish to own or carry a firearm do not have a disqualifying history that could pose a risk to themselves or others. A background check typically involves reviewing criminal records, mental health history, and other pertinent factors that can determine a person's eligibility to possess a firearm. This requirement is in place across many jurisdictions as a measure to enhance public safety and responsible gun ownership.

The other options, while they may be relevant in certain contexts or jurisdictions, do not typically serve as standard requirements for obtaining a gun license. For instance, completion of a specific quiz on firearm usage may be part of a training program but is not universally mandated as part of the licensing process. Recommendations from neighbors may not provide the objective assessment needed to evaluate a person's fitness to own a firearm. Similarly, membership in a hunting club, while potentially advantageous for learning firearm safety and responsible use, does not generally constitute a requirement for licensing. The necessity of background checks reflects a foundational component of responsible gun ownership.