I think the answer is A, I'm sorry if I'm wrong
I just learned this you have to give up something to do something like going to school.you could be sleeping at work or even playing video games but you rather go to school.that is an opportunity cost you give up one thing for the other plz mark as brainliest<span />
Portrait is the right answer
Using all of it at times and only small parts of it at others..... not fully certain
