GKFix MCQ Question

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

• A. 2-Ethylhex-1-yne
• B. 3-Ethylhex-1-yne
• C. 4-Ethylhex-1-yne
• D. 3-Ethylpent-1-yne