Task: Question Answering
Input (English): Problem: in a group of 12 engineers , 4 engineers have a phd degree ; the others have only an ms or bs degree . a team of 4 engineers is to be chosen which must have at least 1 engineer with a phd , how many different teams can be chosen ? 
Options: a ) 495 , b ) 70 , c ) 245 , d ) 425 , e ) 555
Output (English): d