Final answer:
The correct answer to the question is E. 10, To calculate the marginal product of labor, we determine the extra meals produced after hiring an additional employee, which is an increase of 10 meals. Hence, the marginal product is 10 meals per day.
Step-by-step explanation:
The question is asking to calculate the marginal product of labor, which is the extra output created by adding one more worker to the production process. To find the marginal product of labor, we use the following formula: MP = ΔTP / ΔL, where ΔTP is the change in total product and ΔL is the change in labor. The restaurant went from producing 250 meals to 260 meals after hiring one more employee, which is an increase of 10 meals. Therefore, the marginal product of the additional employee is 10 meals per day.
The correct answer to the question is E. 10.