问题详情

Theowner"sequityinabusinesscomesfromtwosources:______.(1)Investmentbytheowner(2)Notesreceivable(3)Earningsfromprofitableoperationofbusiness(4)Accountsreceivable
A．(2)and(4)
B．(1)and(3)
C．(1)and(2)
D．(3)and(4)

请帮忙给出正确答案和分析，谢谢！