Let

Uequals=StartSet a comma b comma c comma d comma e comma f comma g comma h comma i comma j comma k EndSet{a,b,c,d,e,f,g,h,i,j,k}.

Let

Aequals=StartSet a comma c comma d comma f comma g comma i EndSet{a,c,d,f,g,i}.

Let

Bequals=StartSet b comma c comma d comma f comma g EndSet{b,c,d,f,g}.

Let

Cequals=StartSet a comma b comma f comma i comma j EndSet{a,b,f,i,j}.

Determine

Upper A intersect Upper CAC.

Question content area bottom

Part 1

Choose the correct answer below and, if necessary, fill in the answer box in your choice.

A.

Upper A intersect Upper CACequals=StartSet nothing EndSetenter your response here

(Use a comma to separate answers as needed.)

B.

Upper A intersect Upper CAC

is the empty set.