Build the from as shown below:
Make sure that each radio button is inside one of the group boxes.
If you don't put radio buttons in separate containers, you can only select ONE of Small, Medium, Large, Thin or Thick.
Group Box grpSize contains Radio Buttons radSmall, radMedium, radLarge.
Group Box grpCrust contains Radio Buttons radThin radThick
.Check Box chkCheese.
Label lblCost
Save and run the program to make sure taht you can select a radio button from each group.