(incorrect)

9. (1 point)

Let W = {a,b,c,d,e}, X = {a,c,f}

(a) Determine X-W

A. {b,d,e,f}

• B. {f}

C. {b,d,e}

• D. {}

• E. {a,c}

(b) Determine W-X

• A. {b,d,e}

• B. {}

• C. {a,c}

• D. {f}

• E. {b,d,e,f}

Answer(s) submitted: