What is eutectoid temperature?

• A. 727¬¨¬®‚Äö√†√ªc
• B. 768¬¨¬®‚Äö√†√ªc
• C. 1146¬¨¬®‚Äö√†√ªc
• D. 1495¬¨¬®‚Äö√†√ªc