Which is/are the correct IUPAC name(s) of the corresponding structures? This que

Option A is a correctly formed IUPAC name. The parent chain is cyclohexanol with the alcohol at position 1. The methyl group is at position 2, and the substituted amino group (N-ethylamino) is at position 3, with the N- prefix correctly indicating ethyl substitution on nitrogen. Option B is also correct, but the question requires a single option. Option C is incorrect because 'chlorocarbonyl' is not the preferred IUPAC prefix; the correct prefix would be 'carbonochloridoyl'. Option D is incorrect; the correct name for a cyclohexane with an aldehyde group is 'cyclohexanecarbaldehyde'.