Why are college completion rates not keeping up with the job market’s demand for college graduates?
a. Students are graduating with majors different from those the job market demands.
b. It is normal to have a lag between changing demand and the resulting change in supply.
c. College applications and admissions are on the decline.
d. Higher numbers of college students are dropping out before graduation.

d. Higher numbers of college students are dropping out before graduation.

Explanation:

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.