In EDI, customer payments for ordered goods typically involve $\_\_\_\_\_\_.$

Question $4$ options:

A$)$

automated clearing house $($ACH$)$ transfers between buyer and seller bank accounts

B$)$

a system to system exchanges of credit memo and debit memo documents

C$)$

credit card charges against a pre$-$established line of credit $($LOC$)$

D$)$

payment services associated with EDI network providers