Which below function in React.js is used to get the DOM node when the component is rendered ?(A) renderDOM()(B) componentAtNode()(C) getDOMNode()(D) findDOMNode()

What is the output of the below code snippets ?import React from 'react';import ReactDOM from 'react-dom';const Component=()=>{ return <h1>This is Quiz Portal</h1>} ReactDOM.render( <Component />, document.getElementById("root"));(A) Component(B) This is Quiz Portal(C) Error in code(D) None of the above

What is the best definition of React.js ?(A) Server-side Framework(B) User-interface framework(C) A Library for building interaction interfaces(D) None of These