Shortly after louisa learned that her mother had been killed in an automobile accident, she walked around her hometown for hours not knowing where she was. she was probably exhibiting

so you know what happened be fore you were alive

explanation:

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.