The statement of cash flows shows the following information:
Cash provided by operating activities of $ 18,000..
Cash used by investing activities of $ 8,200 ..
Cash used by financing activities of $ 2,700 ..
The beginning cash was $14,500. What is the amount of cash at the end of the period?
a) $31,100.
b) $21,600.
c) $8,600.
d) $42,000.