Answer:
Sales budget
Step-by-step explanation:
A budget is an amount that is planned and set aside to be used for a particular purpose. It helps a business entity plan and efficiently use its resources.
As a business the first budget that is usually prepared is the sales budget. This is the primary purpose of the entity, to sell and make profit.
As profit is generated from sales other activities can easily be budgeted for.
Master budget is collection of all lower budgets of a business