Consider the following control chart.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

$0$

$2$

$4$

$6$

$8$

$10$

$12$

$14$

$16$

$18$

$20$

$0$

$2$

$4$

$6$

$8$

$10$

$12$

$14$

$16$

Control Chart

UCL

Centerline

LCL

Which points if any are out of control? Write the labels of such points as your answer. Separate multiple labels with commas. If there are no points out of control, write None for your answer.