Which of following is not a graphical method for representing stress?

• A. Lame‚Äö√Ñ√∂‚àö√ë‚àö¬•s stress ellipsoid
• B. Cauchy‚Äö√Ñ√∂‚àö√ë‚àö¬•s stress quadric
• C. Lame‚Äö√Ñ√∂‚àö√ë‚àö¬•s stress circle
• D. Mohr‚Äö√Ñ√∂‚àö√ë‚àö¬•s circle