Bad Space in Dropdown List in Form

edited 12/09/19 in Smartsheet Basics

In creating a new form, and utilizing a drop down list, Smartsheet is adding an extra space which users can select when completing the form.  I have created a dropdown test using four values.  When creating the form I can select any of those values as the this case "1".  Then when publishing the form, users can still select the "blank" option in the value.  How can the blank be eliminated so it cant be used?

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