Consider the following pairs with regard to sports awards : 1. Major Dhyan Chand Khel Ratna Award — For the most spectacular and outstanding performance by a sportsperson over period of last four years 2. Arjuna Award — For the lifetime achievement by a sportsperson 3. Dronacharya Award — To honour eminent coaches who have successfully trained sportspersons or teams 4. Rashtriya Khel Protsahan Puraskar — To recognize the contribution made by sportspersons even after their retirement How many of the above pairs are correctly matched?