The 4 are as follows: blood-air, phlegm - water, yellow bile - fire and black bile is earth. so blue vile would not belong
I think the answer would have to be "B. Overtraining"
Answer:
Humans cannot digest cellulose, but it is important in the diet as fibre. Fibre assists your digestive system – keeping food moving through the gut and pushing waste out of the body.
Explanation:
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