GKFix MCQ Question

In the orbital diagram of ethyne, which orbitals are involved in forming the C-H sigma bonds?

• A. sp hybridised orbital of carbon and 1s orbital of hydrogen
• B. sp2 hybridised orbital of carbon and 1s orbital of hydrogen
• C. p orbital of carbon and 1s orbital of hydrogen
• D. s orbital of carbon and 1s orbital of hydrogen