Button to add a new form and a new Angularjs field

Question

I need to make a form of questions and answers, basically, as follows:

• Should allow adding several questions, each with at least 2 answers, where one of them should be marked as correct;
• Delete answers and questions, when deleting a question the answers should be deleted.
• Allow editing both questions and answers at any time;

I thought to do as follows: When the user wants to add a new question, there will be a button that when he clicks, adds a new form, and there, the question and the answers are created. And inside the form, next to the input, another button that when clicked, adds a new response option.

I need to do with Angular. I would like to know how I do this scheme of buttons

Thank you in advance!