Five teaspoons would be written as:

• A. 5 ts
• B. 5 tspn
• C. 5 tsp
• D. 5 tps

Answer: (C)

Using the standard unit for a teaspoon and proper spacing is key. The common abbreviation for teaspoon is tsp, and we write a space between the number and the unit, so five teaspoons should be written as “5 tsp.” The other forms aren’t standard: “ts” isn’t a recognized abbreviation for teaspoon, “tspn” is an alternative but not the widely accepted form, and “tps” isn’t used for teaspoon. Keeping to “5 tsp” helps ensure clear, consistent dosing in health contexts.