The correct answer is A) physical fitness.
A developmentally appropriate social studies concept for the earlier childhood setting is physical fitness.
Children love to play. Even early childhood school teachers admit that the best way to teach children is through play and games. Children want to have fun and learning through play is a valid technique that many teachers use. So physical fitness could be a developmentally appropriate social studies concept for the earlier childhood setting. So through physical education, teachers can develop good habits in children such as the importance of doing exercise, stay healthy, having good nutrition, and have fun doing all that.