The correct IUPAC name of the following compound is:
(a) 2,4,6-trimethyl cyclohexanone
(b) 1,3,5- trimethyl benzophenone
I was confused between option (a) and (d). I opted for option (a), but our teacher told that ans is an option (d). The only difference I see between these two options is that there is space in (a). Does space have any significance in IUPAC nomenclature?