Answer:

Step-by-step explanation:
When you have an infinite program running, say


(which will run forever, since 1 is always equal 1)
You can press "Control C" to terminate the program.
Most bash's use Control+C as the terminating process, however there is also Control+Z which sends a protocol named SIGTSTP which temporarily "sleeps" the program - this can be undone. However, with Control+C, the program is stopped unless you start it from the beginning again.
Hope this helped!