Answer:
A universal theme is a fundamental idea applies to all people and cultures and involves human traits such as gender and nationality.
Step-by-step explanation:
A universal theme refers to an idea that deals with concepts of human nature which most people could understand. Or in other words, a universal theme is as an idea that could apply to everyone despite the cultural differences or geographical location.
Bearing the described above, it could be said that a universal theme could be defined as a fundamental idea applies to all people and cultures that involves human traits such as gender and nationality.