. If the furniture and equipment account balance was $50,000 at the beginning of the period and $40,000 at the end of the period, we could assume that:

a. $10,000 of fixed assets were sold for cash

b. there has been a $10,000 reduction in the account that could have been caused by one or more purchases and sales of assets

c. more than $10,000 of assets were sold and some new assets were purchased

d. working capital has been decreased by $10,000