Which sentence helps to develop the author's explanation of the development of civilization on the Central American land bridge?

Ineed the answer asap composition or ideas about "the day i ran away" with 500 words

Atheme from letter 4 in frankenstein is “friendship is sometimes born in the most unconventional places and situations.” this theme is conveyed through the conversations between walton and frankenstein, and these talks lead them to become confidants and friends. describe a theme from letter 3 of frankenstein and a different theme from letter 4. how are these themes conveyed in each letter? provide evidence from the text to support the themes expressed in each letter.

Which word best describes the white rabbit in the passage?