Iodine monochloride, ICl, a black crystalline solid with an mp of 27.2°C and a bp of 97°C, is prepared by mixing equimolar amounts of I2 and Cl2. ICl is used to iodinate aromatic rings via an electrophilic aromatic substitution reaction. Draw the structure(s) of the most stable intermediate in the reaction when 3-aminobenzoic acid is iodinated at the position labeled as "a".