What is the main purpose of set-aside programs adopted by certain government authorities for construction projects? Available answer options Select only one option A To require a certain percentage of contractors or subcontractors on a project be set aside for minority-owned, disadvantaged, or women-owned business enterprises B To require a general contractor to only use subcontractors that employ a certain percentage of union members C To require government agencies to set aside a certain percentage of a contract's amount to be paid only when a project has been successfully completed for a specified period of time D To require projects be set aside until future periods when revenue projections are below expectations, even if contracts have already been issued