Below are the year-end balance sheets for Wolken Enterprises:
Assets 2015 2014
Cash $ 200,000 $ 170,000
Accounts receivable 864,000
700,000
Inventories 2,000,000 1,400,000
Total current assets $3,064,000 $2,270,000
Net fixed assets 6,000,000 5,600,000
Total assets $9,064,000 $7,870,000
Liabilities and equity:
Accounts payable $1,400,000 $1,090,000
Notes payable 1,600,000 1,800,000
Total current liabilities $3,000,000 $2,890,000
Long-term debt 2,400,000 2,400,000
Common stock 3,000,000 2,000,000
Retained earnings 664,000 580,000
Total common equity $3,664,000 $2,580,000
Total liabilities and equity$9,064,000 $7,870,000
Wolken has never paid a dividend on its common stock, and it issued $2,400,000 of 10-year non-callable, long-term debt in 2014. As of the end of 2015, none of the principal on this debt had been repaid. Assume that the company's sales in 2014 and 2015 were the same. Which of the following statements must be CORRECT?
a. Wolken had negative net income in 2015.
b. Wolken repurchased some common stock in 2015.
c. Wolken issued new common stock in 2015.
d. Wolken issued long-term debt in 2015.
e. Wolken increased its short-term bank debt in 2015.

From the information that have been provided in the question, we can see that in 2015, the common stock was 3,000,000 while in 2014, the common stock was 2,000,000. This shows that there was an increase of: (3,000,000 - 2,000,000) = 1,000,000 new common stock.

Wolkem did not have a negative me income in 2015 and also didn't issue long term debt in 2015 as he had the same amount of long term debt for 2014 and 2015 which was 2,400,000.

Therefore option C is the correct answer as Wolken issued new common stock in 2015.