You may have heard that a young man named Abner Doubleday invented the game known as baseball in Cooperstown, New York, during the summer of 1839. Doubleday then went on to become a Civil War hero, while baseball became America's beloved national pastime. Is it helpful?
A is incorrect. Eating nothing but fruits will not provide you with the right amount of carbohydrates and proteins everyday. C is incorrect. It is not enough that we eat one of each food group since we have target calories per food group. D is incorrect since calcium is not only what our body needs. B is correct, we have target number of calories each day in our diet.
Answer: Ambulatory monitoring of the electrocardiogram in 100 healthy 14 to 16 year old boys showed heart rates ranging from 45 to 200 beats/minute during the day and from 23 to 95 beats/minute during sleep.
C...........................................................................................................
