Two masses A and B of 10 Kg and 5 Kg respectively are connected with a string passing over a frictionless pulley at a corner of a table. Block C is Kept on Block A and Block is B is hanged with the help of string. The coefficient of friction of A with the table is 0.2. The minimum mass of C that may be placed on A to prevent it from moving is equal to?

1. Two masses A and B of 10 Kg and 5 Kg respectively are connected with a string passing over a frictionless pulley at a corner of a table. Block C is Kept on Block A and Block is B is hanged with the help of string. The coefficient of friction of A with the table is 0.2. The minimum mass of C that may be placed on A to prevent it from moving is equal to?

A) 10 kg
B) 15 kg
C) 20 kg
D) 5 kg