GKFix MCQ Question

What is the correct IUPAC name for the structure CH3-CH2-CH(CH3)-CH2-C(CH3)(CH2CH3)-CH3?

• A. 5-Ethyl-3,5-dimethylheptane
• B. 4-Ethyl-3-methyl-4-methylheptane
• C. 3-Methyl-5-ethyl-5-methylheptane
• D. 5-Ethyl-4,4-dimethylheptane