it would be D because if you dont take notes it can get pretty difficult for problems that are pretty hard but if you dont have a textbook you wont be able to take notes
The answer would be A, Using your phone as a calculator.
Explanation:
In a school or college or university or even at an entry test to an organization, if you use your phone as a calculator, it won't seem appropriate. Using your phone as a calculator would not produce an environment of a test. It would be like if there is no strictness or professionalism during the test. During a test, there is always a time limit, the room is usually quiet, and no textbooks or notes can be used. There should be a proper calculator if required. You cannot use your mobile as a calculator.
Cardiovascular health has to do with your circulation system and your heart. Having good nutritions and exercise can improve your cardiovascular health.
