निम्नलिखित में से कौन सा प्रश्न छात्रों को सीधे अपनी विचार प्रक्रियाओं पर चिंतन करने के लिए प्रेरित करता है?

Assertion (A): While teaching problem-solving, teachers should discourage children from thinking about their own thinking and focusing on how to learn. Reason (R): The development of metacognitive abilities hinders effective problem-solving. Choose the correct option.

Thinking about one's own thinking is known as ______ and is a ______ ability.