I should assume it warming up. You warm up before you play any sport right? Playing sports is exercising.
Hope this helps you!!
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.
It'll take him 7 days. 75/12 = 6.25
This also means on the last day he'll only have to harvest 3 acres.
B. is the answer. hope that helps. :)