Table) Suppose an economy can produce the combinations of bread and cookies shown in the table. The opportunity cost of increasing bread production from 25 loaves to 50 loaves is _____ and the opportunity cost of increasing bread production from 50 loaves to 75 loaves is _____.

A.15 dozen cookies; 30 dozen cookiesB.90 dozen cookies; 45 dozen cookiesC.75 loaves of bread; 50 loaves of breadD.25 loaves of bread; 30 dozen cookies