Distinguishing service businesses from retail

Steps:

• Define service business: provides intangible services like education, advice, or repairs, without selling physical goods.
• Examine each option: identify if all items offer services only, excluding retail sales.
• Eliminate options with retail elements: book shops, newsagents, and food stores sell products.
• Confirm the option where all are pure services: education, tax advice, and repairs.

Why C is correct:

• Language school, tax firm, and jewellery repair all deliver intangible services (teaching, financial advice, fixing items), aligning with the economic definition of service sector businesses.

Why the others are wrong:

• A: Book shop and newsagent sell physical goods, not services.
• B: Food store sells products, not services.
• D: Newsagent and food store sell goods, not services.

Final answer: C