This is similar to the Bicep and Shoulder workouts I posted last week. It follows the same concept: complete each lettered circuit 3-4x. Go from one exercise to the next with no rest. Catch your breath at the end of each ab exercise before repeating the circuit. ✅ EX: do the exercises in "A" back to back with no rest. Rest after you complete the ab exercise. Repeat "A" 2-3 more times for a total of 3-4 total rounds.
P.S. If you don't know what an exercise is, bodybuilding.com has a search box. Just type in the exercise and an image and demo will show you. Or GOOGLE will also show you images of all these exercises.