According to Robert Glaser, what is the general purpose of the research at the University of Pittsburg's Learning and Research Development Center?

The mission of the Learning Research and Development Center (LRDC) at the University of Pittsburgh is to advance the science of learning by bringing together leading researchers in the cognitive, social, and educational sciences.

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.

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane