[单选题]
A 36-kg round table is supported x5gpq;fv/e:k k5 4nam by three legypv*yo0 4m+zf;f; fogs placed equal distances apart on the edge. What minimum mass, placed in the middle between two supports oooy0fp*g ;z+myv f; f4n the table's edge, will cause the table to overturn?
A. $12 \; kg$
B. $24 \; kg$
C. $36 \; kg$
D. $48 \; kg$
