script.Parent.Option3Text.Style = “5” is WRONG for If statements.
Instead you have to use Parent.Option1Text.Style = Enum.ButtonStyle.RobloxRoundDropdownButton.
I know this is an old post but when you’re assigning to a property which expects a particular enumeration type value you have multiple options. You can assign an enumeration item of the expected enumeration type itself, you can assign a code (number value) which represents that enumeration or you can assign the enumeration item’s name (string value).
local textbutton = script.Parent
textbutton.Style = Enum.ButtonStyle.RobloxRoundDropdownButton
local textbutton = script.Parent
textbutton.Style = 5
local textbutton = script.Parent
textbutton.Style = "RobloxRoundDropdownButton"