Form I-485 concurrent filing with I-130 Marriage Based Question.

I am a USC and my husband is here on a P1 Visa. I’ve filed the I-130 online and am currently doing the I-485. A few questions:

• What would I put for Part 1 26.c. : Status on form I-94 if his P1 expires this year?

• Would he be the Principal Applicant? Neither of us have children.

• On Part 2, 2: Are you applying for adjustment based on the Immigration and Nationality Act (INA) section 245(I)? I put down no but the note underneath it saying that if you select you, yes you must’ve selected a family based immigrant category confuses me. Would it still be no ?

If anyone can help with even just one of these questions I would highly appreciate it! Thank you in advance!