It is desirable that sintering stops when ______

• A. \(\frac{dA_{SV}}{dA_{SS}}\)is close to zero
• B. \(\frac{dA_{SS}}{dA_{SV}}\) is close to zero
• C. γSS >> γSV
• D. \(\frac{-dA_{SV}}{dA_{SS}}\)is close to zero