Stahl Consulting started the year with total assets of $20,000 and total liabilities of $5,000. During the year, the business recorded $16,000 in catering revenues and $10,000 in expenses. Stahl issued stock of $3,000 and paid dividends of $5,000 during the year. Stockholders' equity changed by what amount from the beginning of the year to the end of the year?

Select one:

A. $3,000.

B. $1,000.

C. $15,000.

D. $4,000.