Here is a goal: Start doing basic aerobic and cardio exercise

Which way makes more sense to accomplish this goal?

Select from:
+Start with a small goal of 3 minutes, 7 times per week if you aren't exercising at all currently.
+Start with a small goal of 30 minutes, 3 times per week if you aren't exercising at all currently.
Start with a small goal of 30 minutes, 3 times per week if you aren't exercising at all currently