The correct answer is The parrot opened its cage door itself and flew away
Explanation:
In grammar, the function of an intensive pronoun is to emphasize or refer back to a noun previously mentioned. Moreover, all intensive pronouns end in -self or -selves, which includes words such as herself, himself, themselves, among others.
In the case of the sentence "The parrot opened its cage door and flew away" this can be completed by adding the intensive pronoun "itself" that would emphasize the action of "the parrot". Also, this should be placed after the action "opened its cage" because this is the action that should be emphasized as it is unusual the parrot opened the cage without help. According to this, the sentence should be completed as "The parrot opened its cage door itself and flew away."
