The idea of maifest means

I believe it is this

Explanation:

As an adjective, manifest is a formal way to say that something is apparent to the senses and is synonymous with evident, apparent, or clear. If you have strong feelings about something, they will be manifest on your face. A ship or plane's manifest is the list of cargo or passengers on a particular trip.

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.