$4.$ Given the following :

A$=\{$x in Z $|$ x is a multiple of $3\}$

B$=\{3,5,7,9\}$

C$=\{2,3,4,5\}$

Indicate whether each statement is true or false. $($ indicates complement$)$

e$.$ A $\backslash$cap B $\backslash$cap C $=\{\}$