Step 1 :The distribution of time spent eating and drinking each day is highly skewed right.
Step 2 :A large sample size is necessary to ensure that the distribution of the sample mean is approximately normal.
Step 3 :The Central Limit Theorem states that as the sample size increases, the distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution.
Step 4 :Therefore, a large sample size is needed to construct a confidence interval for the mean time spent eating and drinking each day.
Step 5 :The correct answer is C.