Girish bought 1 kg of peanuts. He ate \[\frac{2}{5}\text{ kg}\]of the peanuts and gave \[\frac{3}{10}\text{ kg}\]of them to his friends. What quantity of peanuts had he left?

• A.  \[\frac{2}{5}\text{  kg}\]                   
• B.  \[\frac{4}{5}\text{ kg}\]        
• C.    \[\frac{1}{10}\text{ kg}\]      
• D.    \[\frac{3}{10}\text{ kg}\]