["What is the function of the 'placeholder' attribute in the input fields?", "What is the class 'form-control' used for in the input fields?", "What is the purpose of the 'form-row' class in the form?", "When was Bootstrap 5 released?", "What was the outcome of Bootstrap 5's reliance on third-party dependencies?", "What is the purpose of the 'required' attribute in the input fields of the form?", "How would you describe the codebase of Bootstrap 5 compared to Bootstrap 4?", "What is the purpose of the 'col-md-6' class in the form?", "What improvement was made to the grid system in Bootstrap 5?", "What significant change occurred in Bootstrap 5 regarding JavaScript plugins?"]