Jelena is studying in her apartment when suddenly the power goes out. she has to walk to the kitchen to get a flashlight and is surprised by how well she "navigates" without bumping into anything in the dark. she is able to do this because she has formed a(n)

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.