An Accounts Receivable Population Contains a Total of 4 Customers

An accounts receivable population contains a total of 4 customers.The accounts, amounts, and cumulative total are shown in the following table:
$\begin{array}{ccc}\text { Account Number } & \text { Recorded Amount } & \text { Cumulative Total } \\\hline \text { Blue } & \$ 357 & \$ 357 \\\hline \text { Brown } & 281 & 638 \\\hline \text { Grey } & 60 & 698 \\\hline \text { Green } & 574 & 1272 \\\hline\end{array}$
If monetary-unit sampling is used, what is the population size?

A) 1272
B) 574
C) 4
D) unknown