The IUPAC nomenclature of the organic compound with the above structural formula is

• A 3-ethyl-2,5-dimethylhexane
• B 4-ethyl-2,5-dimethylhexane
• C 3-ethyl-2,5,5 - trimethylpentane
• D 3-ethyl, 1,1,4-trimethylpentane