Assume a merchandising company provides the following information from its master budget for the month of May:

Cash balance, May 1 $20,000
Cash collections from customers $80,000
Cash disbursements for merchandise purchases $35,000
Cash disbursements for selling and administrative expenses $40,000

If the company wishes to maintain a minimum cash balance of $30,000 at the end of every month, then its borrowings at the beginning of May will equal:_______

a. $5,000
b. $0
c. $25.000
d. $20,000