Form view of true/false slide not allowing me to choose correct answer from my slide

Usually when you make a question you can choose from an image or a custom box you made if you want to allow the user to click it as a response instead of just using the default text field and button

But for some reason it's only allowing me to type an answer in the form view instead of selecting what I want to select in a drop down box

It's one of those where I think I've stared at it for too long and can't see the wood for the trees, I hope 😅