HiI was under the same scenario and used #3 (me, my father, and my mother) at the bottom as the total number of people sponsored or family size and I was able to link my parents application.
Thank you so Much, that worked actually !!
Another Question,
now in my CIC linked application shows that I do not need to Submit any further documents, and there is no way I can re-submit the requested documents (PCC, CV, Passport Copies) is this correct?
Should I be worried? or you think they have received my documents submitted by Email.
And do you know if they response to the Email submission?