Concept:The backspace key is the main key used to erase text while typing.
Explanation:When you press the backspace key, it deletes the character immediately to the left of the cursor.
This makes it the correct key for removing text, letters, numbers, or symbols.
The arrow keys only move the cursor around the text without deleting anything.
The enter key starts a new line or confirms a command, not delete text.
The esc key cancels or closes menus and dialogs, so it does not remove characters.
Therefore, among the given options, the backspace key is the one that deletes text.
Answer:C. backspace key