checkBox Logic when i clicked the any one check box other is not checked

i have a problem for making a logic in textBox .if i clicked on the any check box other is cannot checked means to say in one time one checkBox is checked how to solve that problem only one check box is checked?

for example i'm from Usa i have more options in checkbox but i'm in usa not other countries so why i'm make a logic only USA is checked other is not checked?