The Wong-Baker Method for Assessing Pain in Children Uses

The Wong-Baker method for assessing pain in children uses:

A) a system of six different colors for ranking pain from red hot to none in cool shades of blue on a rating scale of 5 to 0
B) six different faces ranging from smiling to very distressed with downturned mouth and severe frown on a rating scale of 0 to 5
C) pictures of children in various activities from playing happily to crying over a scraped knee
D) a play kit with dolls who show various expressions including three who have expressions of mild, moderate, and severe pain