Final answer:
Tom is specializing in growing only potatoes on his farm.
Step-by-step explanation:
Tom is specializing in growing only potatoes on his farm. Specialization is the process of focusing on one particular product or activity. By choosing to grow only potatoes, Tom is dedicating his resources and efforts to maximize the production and quality of potatoes. He is not diversifying his crops by growing cabbages and cauliflower, which would involve growing multiple types of crops on his farm. Therefore, the correct answer is A. specializing.
Learn more about Tom's decision to grow only potatoes on his farm