The correct answer is C. Both A and B.
A cash budget is a projection of a company’s future cash flows. It is based on the company’s past performance and future estimates of sales, expenses, and other cash flows. The cash budget is used to help the company manage its cash flow and avoid running out of cash.
Option A is incorrect because the cash budget is not based solely on past performance. It also takes into account future estimates of sales, expenses, and other cash flows.
Option B is incorrect because the cash budget is not based solely on future estimates. It also takes into account the company’s past performance.
Option D is incorrect because the cash budget is based on both past performance and future estimates.