Characterize EACH of the Three Given Statements as Being TRUE

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) An atom with the electron configuration 1s²2s²2p² possesses two valence electrons.
(2) The formula of the ionic compounds that contains Ba²⁺ and N^3- ions is Ba₂N₃.
(3) The polyatomic ions nitrate and azide are both tetraatomic entities.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.