I'm not 100% sure but I think it's a. Hope that helps.
Aerobic exercise stimulates the heart rate and breathing rate to increase in a way that can be sustained for the exercise session. In contrast, anaerobic ("without oxygen") exercise is activity that causes you to be quickly out of breath, like sprinting or lifting a heavy weight.
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Playing video games, including violent shooter games, may boost children's learning, health and social skills, according to a review of research in American Psychologist. The study comes out as debate continues among psychologists and other health professionals regarding the effects of violent media on youth.