【名词&注释】
电子商务(e-commerce)、质量保证(quality assurance)、自我实现(self-realization)、各部门(different sectors)
[单选题]按照交易对象分类,电子商务可以分为4种类型,即:B2C(BusinesstoCustomer)、B2B(BusinesstoBusiness)、B2G(BusinesstoGovernment)和()。
A. C2G(CustomertoGovernment)
B. C2C(CustomertoCustomer)
C. G2G(GovernmenttoGovernment)
D. C2B(CustomertoBusiness)