Answer
When a company issues common stock, it is raising the equity. However, when a company takes a debt it it increasing the debt. Therefore, taking a debt increases the riskiness.
Work Step by Step
A company's riskiness is determined by the ratio of the debt to the assets of the ratio of the debt to the equity. The lower it is, the better it is. When Tom Sands takes debt to finance the business, the debt to assets ratio and the debt to equity ratio is increasing, indicating increase in riskiness. Increasing the equity by issuing common stock does not increase riskiness.