Their learning time can be less than efficient on those first few days back from break. What does the author of Passage 2 mean by this sentence?

A Learning is not as valuable after a break.
B Learning is not as productive after a break.
C The students are not able to learn after a break.
D The students are not willing to work after a break

Read the passage. (1) since prehistoric times, milk has been a vital source of nutrition for human beings. (2) some doctors and nutritionists believe that consuming milk can be detrimental to our health. (3) milk is one of the most nutrient-dense beverages we can consume and it should be an essential part of a healthy diet. (4) drinking just one 8-ounce glass of milk per day puts you well on your way to meeting recommended daily intakes for important nutrients. which transition would be best to use at the beginning of sentence 2? finally additionally however specifically