In this excerpt from "Speech to National Council of Negro Women" by Condoleezza Rice, the rhetorical appeal used is pathos. Pathos refers to the use of emotional appeal to persuade an audience. In this case, Rice is sharing her personal story and expressing her feelings of disappointment and self-doubt about her career choice. By sharing her vulnerability and relatable experiences, Rice aims to connect with the audience on an emotional level.
I hope this helps. :)