Change into positive degree: 'Mount Everest is the highest peak in the world.'

1. ক
   Very few peaks are as high as Mount Everest.
   
2. খ
   No other peak in the world is as high as Mount Everest.
   
3. গ
   Mount Everest is higher than any other peak.
   
4. ঘ
   Mount Everest is not as high as other peaks.