A Linux system is running normally when the systems administrator receives an alert that one application spawned many processes. The application is consuming a lot of memory, and it will soon cause the machine to become unresponsive. Which of the following commands will stop each application process? 

Answer options:

A. kill `pidof application`
B. killall application
C. kill -9 `ps "aux | grep application`
D. pkill -9 application

B

Reference: https://www.tecmint.com/how-to-kill-a-process-in-linux/