Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need factual information, not opinions.

Pls thomas jefferson believed that the french revolution and the reign of terror, a. should be exported to the rest of europe. b. would bring the united states and britain closer together. c. we’re understandable yet regrettable responses to the excesses of french monarchy. d. we’re not particularly important developments.