The processing time appears to be longer for Chinese applicants submitting online than paper.Regina said:It looks like they ask just for number of people living in that household. I could only suppose that Canadian VO in China do not want somebody in Canada living "twenty people in 2bedroom house" invites the 21st relative to stay with them in the same house.
And by the way, you invite her mom- then these are YOUR rules. No agents. Apply online for her (fill in a form for a representative- you) only for a visitor visa.
Furthermore, how do VO know that the household living in a 2 bedroom house?