Task: Question Answering
Input (English): Problem: in a new housing development , trees are to be planted along the sidewalk of a certain street . each tree takes up one square foot of sidewalk space , and there are to be 9 feet between each tree . how many trees can be planted if the road is 151 feet long ? 
Options: a ) 8 , b ) 9 , c ) 10 , d ) 11 , e ) 16
Output (English): e