A pet store has 3 bird cages with 2 birds in each cage, and 10 aquariums with 4 fish in each aquarium. Which of the following expressions represents how many birds and fish the pet store owns?
(3+2)+(10 + 4)
(3+2) x (10+4)
(3 x 2) × (10 x 4)
(3 x 2) + (10 x 4)