Task: Question Answering
Input (English): Problem: in a renowned city , the average birth rate is 7 people every two seconds and the death rate is 2 people every two seconds . estimate the size of the population net increase that occurs in one day . 
Options: a ) 215,000 , b ) 216,000 , c ) 217,000 , d ) 218,000 , e ) 219,000
Output (English): b