$3.$ Which of the following statements is incorrect about business plans?

A$)$ Writing a business plan forces a firm's founders to systematically think through each

aspect of their new venture.

B$)$ For most new ventures, the business plan is a dual$-$purpose document used both inside

and outside the firm.

C$)$ A business plan is typically $25$ to $35$ pages long.

D$)$ A large percentage of entrepreneurs do not write business plans for their new ventures.