The correct answer is:
a. women were viewed with moral purity and therefore it was their duty to speak out on moral issues.
Female activists in the 19th and early 20th centuries often leveraged the ideals of the cult of domesticity, which emphasized women's roles as moral guardians of the home, to justify their social activism. By claiming that women were seen as morally pure, they positioned themselves as having a unique responsibility to address societal issues such as temperance, education, and suffrage, arguing that their virtue and moral authority made them particularly suited to advocate for social change.