Which key deletes text before, or the left of, the insertion point? A. Backspace B. Page up C. Delete D. Page down

The correct answer is A. Backspace.

Backspace is a key on a computer keyboard that moves the cursor one position to the left and deletes the character that was previously there. It is often used to correct typing mistakes.

Page Up and Page Down are keys on a computer keyboard that move the cursor up or down one page, respectively. They are often used to scroll through documents or web pages.

Delete is a key on a computer keyboard that deletes the character that is currently under the cursor. It can also be used to delete a block of text.

I hope this helps!