Carbon Manufacturing Company just hired a new chief risk officer $($CRO$)$ and one of his first tasks was to recommend updated key risk indicators $($KRIs$)$ to the chief executive officer $($CEO$).$ The CEO was especially interested in KRIs measuring the company$$s profitability. One area of measurement that the new CRO might want to use is

Select one:

A$.$ Customer invoices.

B$.$ Customer orders.

C$.$ Aged accounts receivable.

D$.$ Personnel changes.