Final answer:
One tablespoon is equal to 3 teaspoons, and since 1 teaspoon is approximately 4.93 milliliters, 1 tablespoon is roughly 14.79 milliliters. Option B, 3 tsp = 15 mL, is the correct and closest rounded answer. The correct option is (B).
Step-by-step explanation:
The question asks to convert tablespoons to teaspoons and milliliters. According to measurement units conversion, 1 tablespoon (Tbsp) is equal to 3 teaspoons (tsp) and as noted from LibreTexts, 1 teaspoon is approximately 4.93 milliliters.
Therefore, 1 tablespoon equals 3 teaspoons and this equals 3 * 4.93 milliliters, which is about 14.79 milliliters. From the options provided, the closest and correct answer would be Option B: 3 tsp = 15 mL, which is a rounded up value from the actual conversion.