Task: Question Answering
Input (English): Problem: what is the max number of rectangular boxes , each measuring 5 inches by 2 inches by 7 inches , that can be packed into a rectangular packing box measuring 15 inches by 20 inches by 35 inches , if all boxes are aligned in the same direction ? 
Options: a ) 200 , b ) 350 , c ) 100 , d ) 150 , e ) 120
Output (English): d