Task: Question Answering
Input (English): Problem: a person borrows 1000000 for 7 years at 3 % p . a . simple interest . he immediately lends it to another person at 5 % p . a . for 7 years . find his gain in the transaction per year . 
Options: a ) 20068 , b ) 20050 , c ) 20000 , d ) 25000 , e ) 28000
Output (English): c