The answer that you're looking for is C.
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A. Geriatrics is the study of older people
Gynecology is the study of women's reproductive health
Obstetrics is the study of pregnancy and child birth
Pediatrics is the study of children
You can associate with your friends again , it’s better for people who are hands on learners or need examples and things explained to them , and your more likely to do stuff if your there in person
It should take 120 seconds or 2 minutes
Finding out if an exercise is safe needs to determine the fitness level of the exercise and how much it takes to achieve the result of the exercise. The person performing the exercise needs to know their endurance level and if they are able to perform the exercise without injury or illness.