A is a multilevel way of grouping items based on common properties among them. A.
memory
B.
conceptual hierarchy
C.
schema
D.
semantic network

Answer is B)conceptual hierarchy

if it is a supervisor that collects all the handmade products the word is you but if it goes straight to the machine made activity there isn't any word unless there is robot programmed to say you.

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.