How to save radio buttons value in database which are in two groups

private void button1_Click(object sender, EventArgs e)
        {
            string s = "rbtnManagingPerformance = " + GetValue(rbtnManagingPerformance0, rbtnManagingPerformance1, rbtnManagingPerformance2, rbtnManagingPerformance3);
            string s1 = "rbtnCreatingMotivationEnvironment = " + GetValue(rbtnCreatingMotivationEnvironment0, rbtnCreatingMotivationEnvironment1, rbtnCreatingMotivationEnvironment2, rbtnCreatingMotivationEnvironment3);
            MessageBox.Show(s + "\r\n" + s1);
        }
        
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private string GetValue(RadioButton r0, RadioButton r1, RadioButton r2, RadioButton r3)
        {
            string s = string.Empty;
            
            RadioButton[] rbtn = { r0, r1,r2, r3};
            foreach (RadioButton rb in rbtn)
            {
                if (rb.Checked == true)
                {
                    s = rb.Text;
                    break;
                }
                else
                    s = "";
            }
            return s;
        }