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 $2019.$ As of the end of $2020,$ none of the principal on this debt had been repaid. Assume that the company's sales in $2019$ and $2020$ were the same. Which of the following statements must be CORRECT? a$.$ Wolken issued new common stock in $2020.$ b$.$ Wolken issued long$-$term debt in $2020.$ c$.$ Wolken increased its short$-$term bank debt in $2020.$d$.$ Wolken had negative net income in $2020.$e$.$ Wolken repurchased some common stock in $2020.$