Task: Question Answering
Input (English): Problem: b completes a work in 8 days . a alone can do it in 10 days . if both work together , the work can be completed in how many days ? 
Options: a ) 3.75 days , b ) 4.44 days , c ) 5 days , d ) 6.44 days , e ) 7 days
Output (English): b