Final answer:
Kmart is the best example of a turnaround among the given options.
Step-by-step explanation:
A turnaround refers to a company's successful effort to improve its financial performance and reverse a decline. Out of the given options, Kmart would be the best example of a turnaround.
Kmart, a major retail corporation, faced financial difficulties in the early 2000s and filed for bankruptcy. However, they implemented strategic changes and revitalized their business model to improve their financial performance. By closing underperforming stores, focusing on customer needs, and expanding their e-commerce presence, Kmart was able to turn their business around and regain profitability.
Other options like Coca Cola, Microsoft, and Exxon-Mobil did not experience significant financial crises or require major turnarounds during the specified time period.