6. What is the aim of learning?सीखने का उद्देश्य क्या है?Gain stress / तनाव मिलनाGain knowledge / ज्ञान बढ़ानाSpending time / समय बितानाNone of the above

The aim of learning can vary from person to person, but generally, it encompasses gaining knowledge and skills, enhancing personal development, and preparing for future challenges. Among the options provided:

1. Gain Stress: This is generally not seen as an aim of learning. While learning can sometimes be stressful, the ultimate goal is not to gain stress.

2. Gain Knowledge: This is a primary aim of learning. Knowledge acquisition is fundamental to education and personal growth.

3. Spending Time: While learning does involve time, spending time in itself is not the aim. The objective is usually to utilize that time effectively for development.

4. None of the Above: This implies that the options provided do not capture the essence of learning's purpose.

From these considerations, the most appropriate answer is Gain Knowledge. This encapsulates the essence of learning, which is to expand one's understanding and abilities.