How would each of the following be$$likely to affect the value of the dollar, all else equal?$$a$.$ U$.$S$.$ stocks are perceived as having become much riskier financial$$investments$.$b$.$ European computer firms switch from U$.$S$.-$produced software to software$$produced in India, Israel, and other nations.$$c$.$ As East Asian economies grow, international financial investors become$$aware of many new high$-$return investment opportunities in the region.