Task: Question Answering
Input (English): Problem: in a company the manager wants to give some gifts to all of the workers . in each block there are about 100 workers are there . the total amount for giving the gifts for all the workers is $ 4000 . the worth of the gift is $ 4 . how many blocks are there in the company ? 
Options: a ) 12 , b ) 10 , c ) 15 , d ) 17 , e ) 20
Output (English): b