[单选题]
A 36-kg round table is supp6y4pa+9e q5ledr y1 ilorted by threw 3).mgfqz:fxmq ) m*pe legs placed equal distances apart on the edge. What minimum mass, placed in the middle between two supports on the table's )fqmfpq.m: m gxwz) *3edge, will cause the table to overturn?
A. $12 \; kg$
B. $24 \; kg$
C. $36 \; kg$
D. $48 \; kg$
