GKFix MCQ Question

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

• A. 3-Ethylhex-2-yne
• B. 4-Ethylhex-2-yne
• C. 5-Ethylhex-2-yne
• D. 4-Ethylpent-2-yne