Answer:
D. Female students were excluded from attending high school.
Explanation:
Around the turn of century, both men and women were allowed to attend high school. The only difference were the treatment that they have regarding the focus of their study.
They heavily discouraged the female students from attending STEM related field because society at the time deemed these jobs as inappropriate for women role. They're more encouraged to focus on things such as Secretarial role, nursing, children education, etc.
