I am located in the bottom row, and you use your left pinky finger (L1), to key my letter.

If you are located in the bottom row of a standard QWERTY keyboard and I use my left pinky finger (L1) to key your letter, then the correct letter is **Z**.

On a QWERTY keyboard, the left pinky finger typically rests on the "A" key and can reach down to the "Z" key, which is directly below.