Joon-Ha, a Korean Child, Is Trying to Facially Express That

Joon-ha, a Korean child, is trying to facially express that he is upset.Which of the following people would be best at identifying that Joon-ha is upset?

A) Person A, who is American
B) Person B, who is also feeling upset
C) Person C, who is able to ignore contextual cues
D) Person D, who is Korean
E) Person E, who is expressing sadness