Why do the themes in fables tend to be simpler and easier to determine?

AThey are intended for childrenincorrect answer
BThey were written a long time agoincorrect answer
CMost have appeared as moviesincorrect answer
DMost weren't written in English

D. Most weren't written in English

Fables originated from a variety of cultures and were often passed down orally before being written down. Due to this, the themes tend to be more universal and straightforward in order to convey a moral or lesson easily understood by a wide audience.