Final answer:
Option a. By extending credit, a firm typically increases its cash flow through increased gross profits is the false statement.
Step-by-step explanation:
The false statement among the options is:
a. By extending credit, a firm typically increases its cash flow through increased gross profits.
This statement is false because extending credit does not directly increase a firm's cash flow. While it may lead to increased sales and revenue, the cash flow is only affected when the customers make the payments.
Extending credit creates the potential for increased cash flow, but it does not guarantee it.