1. The problem statement, all variables and given/known data 2. Relevant equations Huckel's Law: 4n+2=pi electrons 3. The attempt at a solution I'm not sure what the dash and two dots in the brackets mean, are those lone pair of electrons? Not including them as pi electrons: option 1: 4= 4n+2 n=1/2, so no aromatic option 2: 2= 4n+2 n= 0, so aromatic option 3: 4=4n+2, n=1/2 so the answer should be option 2?