The mother was punishing her children, she raised her voice to do what to them?
Options:
- court system
- authoritarian
- ignore
- avoid
- yell at
Please answer and provide answer explanation.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A person raises his voice to shout. Mother yells at her children to punish them. The final answer: yell at.