What Arab or Muslim Invention or technology was most helpful in improving the economy of the Arab Muslim caliphate? Why?

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.

what are the choices?

gays

explanation:

i would say your answer is a)

sorry if im wrong