I hope you picked C! Even if you want to impress your nosy neighbours or show up other gardeners with your skills, be sure to have fun in the process. Gardening is an inclusive activity that just happens to keep you active.
Get your spouse, kids and grandkids out in the yard to get their exercise and to teach them about the great outdoors.
Or, if you’d prefer the company of like-minded folk, look for a community garden in your area to exercise your green thumb!