Answer:
After reading the passage and analyzing the two issues mentioned and connected by Susan B. Anthony in it, we can say they are the following:
B. Women's suffrage and the rights of African Americans.
Explanation:
In this passage, Susan B. Anthony is linking two important issues: women's suffrage (the right for women to vote) and the rights of African Americans. She is highlighting the fact that during the Reconstruction period in the United States, there was progress made towards securing voting rights for black men, but women were still excluded from this right. By asking an important politician to consider the Constitution's protection for women's voting rights in the same way it protected the rights of black men, Anthony emphasizes the parallel struggle for equality and voting rights for both women and African Americans during that time.