Final answer:
A mentor can be best described as a model who guides, supports, and inspires another person based on their own experiences and achievements.
Step-by-step explanation:
A mentor can be best described as a model. While all the options may have some similarities to a mentor, a model represents someone who serves as an example or inspiration for others. A mentor is someone who guides, supports, and inspires another person, often based on their own experiences and achievements. They provide advice, share knowledge, and help develop skills and abilities.