7. Given that two boxes each contain three chips numbered $1, 2, 3$, one chip is randomly drawn from each box, and the numbers on the two chips are multiplied. What is the probability that the product is an even number? ( ).
(A) $\frac{1}{9}$
(B) $\frac{2}{9}$
(C) $\frac{4}{9}$
(D) $\frac{1}{2}$
(E) $\frac{5}{9}$
7. E.
$$
1-\frac{2}{3} \times \frac{2}{3}=\frac{5}{9} \text {. }
$$