Object a Has a Charge Q on It,object B Has

Multiple Choice

Object A has a charge q on it,object B has a charge q on it,and object C has a charge 4q on it.These charges are arranged,one each,at the vertices of an equilateral triangle.Which charge has the greatest magnitude electric force on it?
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A) A
B) B
C) C
D) All have equal magnitude forces on them.
E) ​A and B