Which key must be selected before you hit ENTER when adding or inserting lines of code inside additional instructions?

• A. The MODIFY key
• B. The ENTER key
• C. The INSERT key
• D. The ASSIST key

Answer: (C)

In many editors, text entry operates in two modes: insert mode, where new characters are added without touching what’s already there, and overwrite mode, where new keystrokes replace existing characters. The key that switches you into (or out of) insert mode is the Insert key. When you’re adding or inserting lines of code inside existing instructions, you want to be in insert mode so that the new lines are placed into the document rather than replacing existing content. Pressing the Insert key sets this mode, and then pressing Enter will create a new line and allow you to continue inserting text. The other keys mentioned don’t control this insertion behavior.