Who must sign the sponsorship for a minor applying for a driver's license?

The correct answer is that the father, mother, or legal guardian must sign the sponsorship for a minor applying for a driver's license because they are the individuals who have legal responsibility for the minor. This requirement ensures that responsible adults who are directly involved in the minor's life can oversee their driving and provide consent for this important milestone.

Additionally, the law is structured this way to ensure accountability and safety. Parents or legal guardians have the authority to decide if the minor is mature enough to drive and can also support the minor in learning safe driving practices. Other options, such as a teacher, family friend, or any adult over the age of 21, do not carry the same legal responsibilities or relationships as a parent or guardian has with the minor. This ensures that the individuals signing for the minor are those who have a vested interest in the minor's well-being and driving education.