Which of the following nerves are anesthetized by an infraorbital nerve block?
1. Zygomatico-temporal.
2. Palpebral.
3. Zygomatico-facial.
4. Lateral nasal.
5. Labial.

(2) (3) (4) (5)

(1) (2) (3) (4)

(1) (2) (3)

(2) (4) (5)

(2) (3) (4)