阅读下列材料, 从每题所给的 A、B、C、D四个选项中选出最佳选项。

What Are People Doing to Stay Healthy?

The COVID-19 pandemic（新冠肺炎大流行）has led many people to pay more atention to their health. Exercising is an excellent way to keep fit. So what are the most popular activities? And what holds people back from physical fitness? Let's look at the results of a recent survey on Chinese people's health and exercise released by iResearch.