Environment/ time period of roe v. wade

Which of the following statements is true for all european countries

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

(100 points) project: progressive era research your topic and write at least seven hundred words to discuss one of the following topics. a. evaluate the impact of progressive era reforms. b. evaluate the impact of progressive reform leaders such as susan b. anthony or robert lafollette. c. evaluate the impact of third parties and their candidates such as h. ross perot and george wallace on america. note: as with any research you do, evaluate the validity of your source: a. who is the author? b. is the author an authority on the subject? c. how does the author use language? d. what sources appear in the author's work? e. from what you know or have learned about the author, is the presentation inappropriately biased?