Final answer:
The acquisition and retirement of common stock by Winn, Inc. results in a decrease in total shareholders' equity.
Step-by-step explanation:
The effect of the acquisition and retirement of the common stock by Winn, Inc. is a decrease in total shareholders' equity.
When the company retires its own stock at a price lower than the original issuance price, it results in a reduction in shareholders' equity. The difference between the original issuance price ($35) and the retirement price ($30) is considered a loss, which decreases the overall value of the shareholders' equity.
Therefore, option B) Decrease in total shareholders' equity is the correct statement.