Which command brings job 1 to the foreground?

• A. bg %1
• B. fg %1
• C. kill %1
• D. ps -j 1

Answer: (B)

Bringing a job to the foreground uses the shell’s job control feature. When a job is stopped or needs interaction, you use the foreground command and specify the job by its number, with a percent sign. Using the foreground command for the given job number brings that job into the foreground, so it runs in the terminal and can receive input if needed. If the job was running in the background, fg moves it to the foreground; if it was stopped, fg resumes it in the foreground. The other options operate differently: moving a stopped job to the background, terminating the job, or listing processes, none of which places the job in the foreground. The key idea is that fg % attaches that specific job to the terminal as the active foreground job.