State tax filing

Got it thanks.

 

Have a couple of follow up questions

1. The NJ Returns asks this - Did anyone other than your spouse occupy and share rent with you for an apartment or other rental dwelling unit ? 
I only had me, my wife and my minor child in the rental apartment. Does my child count as someone other than my spouse ? What should be my answer ? 

2. Since only one of us (Married filing jointly) had a New york income, TT said I need a certification (I believe IT 203-C). If I e-file, should this certification be sent by post ?

Thanks