Answer:
A. A study found that kids can burn just as many calories playing exergames as doing other types of exercise.
B. A study showed that playing video games improved vision test results by up to 20 percent.
Explanation:
Answer choices A and B represent two pieces of evidence (studies) that are relevant to the author's argument. Answer choices C and D do not reference any evidence and are subpar.
2 hours, but it can stay in your system for about a month
