Sponsoring my parents, option C printout was not sent

[karendog]

Hello,
I have sent my application package to Immigration Canada to sponsor my parents to come over from China. In stead of the oprion C printout, I sent the most recent income tax Notice of Assessment. Two months after, I received a letter saying my package has been received. Dose it mean that my application package has all required documents?  Is a Notice of Assessment good enough? I am worried about by the time that my application is processed ( 2 years later) they will return my entire application saying requiring an option C printout.

Thanks in advance..

Karen