Analysis reveals that a company had a net increase in cash of $20,000 for the current year. Net cash provided by operating activities was $18,000; net cash used in investing activities was $10,000 and net cash provided by financing activities was $12,000. If the year-end cash balance is $24,000, the beginning cash balance was:

A. $4,000.

B. $16,000.

C. $44,000.

D. $40,000.

E. $39,000