Final answer:
The correct option is A, which uses the appropriate quotation marks without adding extra punctuation before the quote.
Step-by-step explanation:
The correct punctuation for the given sentence from Thoreau should be 'Thoreau says that "We are determined to be starved before we are hungry."' Therefore, the correct option is: A.
This option correctly places the quotation marks without adding unnecessary punctuation such as a comma, semicolon, or colon before the quotation. There should be no punctuation between 'that' and the beginning of the quotation in this context. The comma is not needed as the clause 'Thoreau says that' is smoothly followed by the quote, making the sentence flow directly into the quotation.