+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
For spousal sponsorship, there is no minimum. They're checking to see whether you have been on 'welfare' or not.
 
No income is needed. All the Option-C is for, is to prove you were not on social services within the last tax year. You should make a statement as to how you will support your family however.