Which one of the following is Not a Correct structure of a patchwork lesson?

Which one of the following is Not a Correct structure of a patchwork lesson? And why

A Engage , Activate, study study, Engage, Study, Activate

B Engage, Study, Activate

C Engage, Study, Engage, Activate, study, Activate

D Engage, Activate, study, Activate, study, Activate

F Engage, study, Engage , study, Activate