Task: Question Answering
Input (English): Problem: right triangle abc is the base of the prism in the figure above . if ab = ac = â ˆ š 10 and the height of the prism is 4 , what is the volume of the prism ? 
Options: a ) 40 , b ) 85 , c ) 20 , d ) 60 , e ) 45
Output (English): c