Task: Question Answering
Input (English): Problem: there are 9 executives , including the ceo and cfo , that are asked to form a small team of 5 members . however , the ceo and cfo may not both be assigned to the team . given this constraint , how many ways are there to form the team ? 
Options: a ) 85 , b ) 87 , c ) 89 , d ) 91 , e ) 93
Output (English): d