Vitamin B12 plays a role in which areas of the body? (Select all that apply.)

According to edgenuity the correct answers areb. of  d. isf. gold

Scarcity is when there is not enough of something to satisfy everyone's wants or needs. when this happens, the amount of the product that is in stock will gain a lot of value, because there's so little of it. this is why consumers will have to pay higher prices for them.

Answer monetary damages or orders to do or not to do something; also you can be order to pay fines or make decisions about your family or your home;