Service businesses provide intangible services, not physical goods

Steps:

• Define a service business as one that sells expertise, labor, or intangible offerings rather than physical products.
• Evaluate each option: check if the primary activity involves delivering services or selling goods.
• Identify supermarkets as retailers focused on selling tangible products like food and household items.
• Confirm the rest involve direct service provision to customers.

Why C is correct:

• A supermarket is a retail business that primarily sells physical goods, not services, per standard business classification where services are intangible and goods are tangible.

Why the others are wrong:

• A: Hairdressing salon provides personal grooming services.
• B: Accountant's practice offers professional financial advice and preparation services.
• D: Computer repair shop delivers technical repair and maintenance services.

Final answer: C