Task: Question Answering
Input (English): Problem: shawn invested one half of his savings in a bond that paid simple interest for 2 years and received $ 200 as interest . he invested the remaining in a bond that paid compound interest , interest being compounded annually , for the same 2 years at the same rate of interest and received $ 245 as interest . what was the value of his total savings before investing in these two bonds ? 
Options: a ) 4000 , b ) 3500 , c ) 2500 , d ) 3000 , e ) 2000
Output (English): e