What is the meaning of the word, unprecedented, as used below? it was then that the society for the extinction of the slave trade and the civilization of africa, headed by prince albert, the husband of queen victoria, launched an unprecedented attempt to eradicate slavery at its origin. the ambitious plan was to win or buy the cooperation of the tribal chieftains along the river niger through a series of treaties, as well as introduce christianity and increase commerce a) unremarkable b) repeated eliminate c) first-time d) odd

Can someone explain this to me clearly plz

How has victor changed by the end of frankenstein

Returning from vietnam, we were indeed given a parade. crowds of screaming people waving signs — not just on one road, one day. no, they were everywhere. every day. on the streets, on the television, on the radio. a hot, angry tangle of shaking fists and ugly words that threatened us like a monster with a hundred heads. our country had chewed us up and spit us out, and now we were being treated as if it were our fault. what is one way the author's use of language contributes to the tone of this passage? a. the use of figurative language creates a feeling of resentment. b. the phrase "hot, angry tangle" is used sarcastically to create irony. c. the word "parade" is used sarcastically to create a lighthearted mood. d. the parallelism draws attention to the confusion of those returning.