How does beginning the passage with the phrase "from the beginning of recorded history" affect the passage's tone?
a. it immediately sets an authoritative tone.
b. it quickly establishes an optimistic tone.
c. it create an intimate tone.
d. it gives the passage an accusatory tone.

a. It immediately sets an authoritative tone.

Explanation:

Based on the passage provided within the question and the answers that are listed, it can be said that this affects the passage's tone by immediately setting an authoritative tone. This type of tone indicates that the speaker knows exactly what he is talking about. Which is the case as the speaker/narrator is talking about historical facts or what he believes are facts.

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Authoritative tone is correct for all future users.

Explanation:

debating and finalizing the detail of the policy

most cajuns resided in acadiana, where their descendants are still predominant