What the tone of the passage?
A. Celebratory
B. Humorous
C. Frustrated
D. Bitter

A. Celebratory

Explanation:

In literature, tone actually helps to give shape and life to a passage or story. By the use of tone, the creation and presentation of the attitude and mood of a literary work is successfully conveyed. Actually, tone helps to give voice to the characters both in a literary and figurative manner.  

In this passage, a celebratory tone is used to convey the mood of the passage. The writer tends to celebrate the history and indigenous heritage of America. The passage reveals the history of America and how certain groups came to dwell in the American land.

Celebratory tone is actually characterized by celebration.

a,b,d are the three sentences that use a reflexive pronoun

a term is used to describe a sudden revelation in a short story is "showing forth".