Which social class experienced the most growth in absolute numbers as a result of the commercialization of the western economy in the period 1450-1750?
(a) peasantry
(b) proletarians
(c) merchants
(d) aristocracy
(e) clergy

Which were the most important issues during the presidential election of 2008? a.economic downturn and environmental protection b.two overseas wars and economic downturn c.two overseas wars and campaign spending d.environmental protection and campaign spending