GKFix MCQ Question

What is the expected major product when 1-butyne (CH₃CH₂CH₂C≡CH) reacts with one equivalent of I₂?

• A. 1,1-Diiodobutane
• B. 1,2-Diiodobutane
• C. 1,2-Diiodobut-1-ene
• D. But-1-ene