Thursday I am on flight 4817 SLC-ORD. I got my upgrade, and was assigned seat 4C. Seatguru shows this flight using the CRJ900 with 3 rows of FC, with row 4 three seats across, but economy seats. Being risk averse, I moved to a window on the right side of row 2 (left side of the plane is all full). I'd prefer the aisle if row 4 is really FC.

Does anyone know if the plane for this flight has 3 or 4 rows of FC?

Thanks.