What is the core subject of the following sentence? The district manager, who oversees over a hundred employees, ( are / is ] expected to speak at the conference in May.
1.district
2.manager
3.who
4.employees
5.conference

Ithink the example would of been if a girl made you mad about something and you talk about her on your social media post than can cause cyberbullying without talking it out to the girl who made you chose to post about it and let the while world know #stop& that lol