Seat question: I'm new to B6 and looking at a flight from JFK to SEA that appears to be on the A321 All Core (no Mint) configuration. I'm a little confused about seats 9D and 9E in this configuration. Are these exit row seats? The "Our Planes" page on the JetBlue website lists 9BC and all of row 10 as emergency exit, but not 9DE. These are not shown as EMR seats, but is there extra legroom? Is there a FA jump seat where 9F would be? Any other considerations? My daughter will be in one of the seats--she meets all the exit row qualifications but she can be a bit anxious about flying. Thanks for any insights.