In the Generic REA Model for the Sales and Collections

Short Answer

In the generic REA model for the sales and collections process, the multiplicities between the Sales and Cash Receipts classes are displayed with question marks. Which of the following best explains this?
A. The direction of process flow depends on the nature of the business.
B. The quantities of items sold can't be determined until the sale occurs.
C. The actual values will depend on the nature of the business.
D. The customer determines the multiplicities for this association.