लेव वायगोत्स्की के अनुसार, संज्ञानात्मक विकास को प्रभावित करने वाला प्राथमिक कारक कौन सा है?

Which of the following best describes the principle of 'orderly progression' in child growth and development?

During the early childhood stage, which social and emotional characteristic is most likely to emerge?