QuestionContainer

[VirtualDOMinic]

Nice work overall! :). Good structure too

A few things with QuestionContainer:

• const [correct, setCorrect] = React.useState("correct"):- as you're using correct as a boolean, it feels weird to initialise it as a string
• if (correct === true) { is redundant (or would be if you were just using it as a boolean). You could just use if (correct)
• Instead of putting an alert in the useEffect, why not make a component that displays "correct!" or "incorrect!" in the DOM?
• You could then also display the counter (score?) on the page too! In this case you'd want to make sure you're reducing the counter number for incorrect answers

[VirtualDOMinic]

The above are just points to consider in the context of a larger refactor