李老师带2500元钱到商场为学校买15个热水瓶，一种是188元/个，一种115元/个，想想李老师该买哪一种热水瓶？还剩多少钱？

Finally, the two girls got to the top of the mountain, ________. [ ]

A. hungrily and tired              

B. hungrily and tiredly  

C. hungry and tired                

D. hungry and tiredly