Which item is not a single-use item?

• A. Wooden sticks.
• B. Disposable nail files.
• C. Metal nail clipper.
• D. Cotton pads.

Answer: (C)

The item being tested here is about hygiene and whether tools are intended for one-time use or can be reused after proper cleaning. The metal nail clipper is the only item that is designed to be reused. It’s a durable tool that can be thoroughly cleaned and disinfected or sterilized between clients, allowing safe repeated use. In contrast, wooden sticks are typically single-use because they can’t be safely disinfected after contact with skin or nails. Disposable nail files are explicitly single-use to prevent cross-contamination, and cotton pads are also used once and discarded. So the metal clipper fits the criterion of not being a single-use item.