Final answer:
Tommy possesses b) practical intelligence.
Tommy demonstrates practical intelligence as per Sternberg's triarchic theory of intelligence, which enables him to find effective solutions in everyday life and adapt to various environments.
Step-by-step explanation:
According to Sternberg's model of intelligence, Tommy possesses practical intelligence. This type of intelligence, which is sometimes likened to 'street smarts,' allows an individual to find solutions in their everyday life by applying knowledge derived from their life experiences.
Practical intelligence is one element of Sternberg's triarchic theory of intelligence, which also includes creative and analytical intelligence. As Tommy can adapt and survive in various environments without a formal college education, it shows his ability to effectively use practical knowledge and skills in real-world situations.