The answer is definitely D, because you need all the traits listed above in order to participate in a sport.
        
             
        
        
        
Explanation:
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An amateur is a person who does something for enjoyment, not money, like an amateur who paints as a hobby but earns a living another way.
The adjective amateur often describes a pastime, like an amateur sports league that people join to get exercise and socialize together. Or it can have a negative meaning and describe something that's poorly done. If your guests leave your dinner table and stop for fast food on the way home, you may be ashamed of your amateur cooking skills. Amateur originated as a French word, meaning "lover of," not "expert."
Definitions of amateur
noun someone who pursues a study or sport as a pastime
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noun an athlete who does not play for pay
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adjective engaged in as a pastime
“an amateur painter”
“gained valuable experience in amateur theatricals”
synonyms:recreational, unpaid
nonprofessional
not professional; not engaged in a profession or engaging in as a profession or for gain
adjective lacking professional skill or expertise
synonyms:amateurish, inexpert, unskilled
unprofessional
not characteristic of or befitting a profession or one engaged in a profession
 
        
             
        
        
        
Answer:
hypocalcemia
Explanation:
Calcium is a vital mineral. Your body uses it to build strong bones and teeth. Calcium is also needed for your heart and other muscles to function properly. When you don’t get enough calcium, you increase your risk of developing disorders like:
osteoporosis
osteopenia
calcium deficiency disease (hypocalcemia)
Children who don’t get enough calcium may not grow to their full potential height as adults.
You should consume the recommended amount of calcium per day through the food you eat, supplements, or vitamins.
 
        
             
        
        
        
It is true that being able to perform well in a high pressure situation is a natural stress response that releases extra hormones. 
        
                    
             
        
        
        
Hello.
The most comment fitness realted stress magnment is yoga.
Have a nice day