google sheets – Hi, i need some help.i have 3 checkbox,how could..when i choose checkbox.1, 2&3 cekbox is unactivate, so when i choose the 2cxbx,and so do the others

//Validating Permition

if(shUserForm.getRange("C14").getValue() == "0"){

ui.alert("Blank is Not Available! Choose your Permition");

return false;

} else if(shUserForm.getRange("C17").getValue() == "0"){

ui.alert("Blank is Not Available! Choose your Permition");

return false;

} else if(shUserForm.getRange("C24").getValue() == "0"){

ui.alert("Blank is Not Available! Choose your Permition");

return false;

}

}

if (shUserForm.getRange("C14").getValue() == "1") {
         datasheet.getRange(blankRow,8).setValue('=CHAR(10004)').getValue(); // Confirm of Late
         datasheet.getRange(blankRow,8).setBackground('#E06666');}

         if (shUserForm.getRange("C17").getValue() == "1") {
         datasheet.getRange(blankRow,9).setValue('=CHAR(10004)').getValue(); // Confirm of Nofinger
         datasheet.getRange(blankRow,9).setBackground('#E06666');}

         if (shUserForm.getRange("C24").getValue() == "1") {
         datasheet.getRange(blankRow,10).setValue('=CHAR(10004)').getValue(); // Confirm of Offwork
         datasheet.getRange(blankRow,10).setBackground('#E06666');}