How can teachers help families understand what is happening during play?

A) Teachers can explain that children are passive during play
B) Teachers can point out that children's minds are idle during play
C) Teachers can describe how children are active explorers during play
D) Teachers can tell parents that children are just running off energy

Describing how children are active explorers during play would help families understand what is happening during play. It emphasizes that play is a tool for learning and discovery, rather than just a means to burn off excess energy or pass the time. Options A and B are incorrect because they give a false impression that children are inactive during play, which is not true. Option D is also incorrect because it oversimplifies the purpose of play and ignores its cognitive and social dimensions.