for ID, 3 examples are given on CIC website and I personally think you can use any two:
1- a Canadian driver’s licence
2- a Canadian health insurance card
3- a copy of the biographical page of your passport/travel document, etc.
That is what I am going to do.
Regarding C1 triger, this is from emails made public through ATIP:
"C1, however, under 407B interpretations, RQ no longer required"
See below links:
http://residencequestionnaire.wordpress.com/rq-triage-2013/
Even though C1 is revised, I am not going to risk it