问题详情

SoftwareEngineeringEconomyisaneffectivepartofsoftwareengineering,whichofthefol-lowingcontentistheresearchcontentofsoftwareengineeringeconomy？()
Ⅰ．Estimationofsoftwaredevelopmentcost
Ⅱ．Earn&Costanalysisofsoftwaredevelopment
Ⅲ．Adjustmentofsoftwaredevelopmentprogress
A．Ⅲonly
B．ⅡandⅢ
C．ⅠandⅡ
D．all
请帮忙给出正确答案和分析，谢谢！