Answer: A. Someone's child had joined the military
Explanation: The "flag" is a great symbol of the military so it's a hard trick question, assuming that he is grown up by then by the lines "But his country called him man-size." Therefore he is still looked at as a kid they cared for which are his/hers parents.
I Know we should stand up and be strong because no one deserver to get bullied or harmed by a person. This should end because if the people who is bullying wouldn't like to get bullied neither.