Greetings!
Sure, can assist you in developing a Single Page Application Prototype in React(preferred) or Angular.js having questions mapped in a tree like structure as per your requirements.
Relevant Skills and Experience
Excellent ability in React.js development.
Skilled in HTML5, CSS3, JavaScript, React.js and Angular.js.
Well versed with Prototyping, UI/UX design, Mapping and tree structure.
Proposed Milestones
$133 USD - Tentative cost
Can you please share the complete scope of your project ?