Task: Question Answering
Input (English): Problem: a salesperson received a commission of 3 percent of the sale price for each of the first 100 machines that she sold and 4 percent of the sale price for each machine that she sold after the first 100 . if the sale price of each machine was $ 10,000 and the salesperson received a $ 42,000 commission , how many machines did she sell ? 
Options: a ) 90 , b ) 103 , c ) 130 , d ) 115 , e ) 120
Output (English): c