Which of the following abbreviations represents teaspoon?

The abbreviation for teaspoon is commonly represented as either "tsp" or "t." This is widely recognized in medical and nutritional contexts, where precise measurements are essential for accurate dosing and food preparation. The use of "tsp" is particularly clear as it explicitly indicates the unit of measure being used, while "t" serves as a simpler shorthand that is understood in context.

In contrast, other options represent different measurements. "qt" stands for quart, which is a larger volume measurement used less frequently in precise dosing compared to a teaspoon. "oz" signifies ounces, which can also refer to volume (fluid ounces) or weight (avoirdupois ounces), introducing potential confusion. These distinctions are important in medical contexts where accurate medication dosing is critical, and understanding measurement abbreviations helps prevent errors. Hence, recognizing that both "tsp" and "t" signify teaspoon confirms their correct representation for this measurement.