Tip of the match stick contains a mixture of?

• A. K + S
• B. K + S + K‚Äö√á√áCr‚Äö√á√áO‚Äö√á√°
• C. S + K‚Äö√á√áCr‚Äö√á√áO‚Äö√á√° + White P
• D. None of these