What Is One Reason "Melodrama" Remained Such a Contested Term

What is one reason "melodrama" remained such a contested term in the analysis and classification of movies?

A) Movies described as melodramas have never enjoyed widespread popularity.
B) The association of melodrama with strong emotions makes some question the value of melodrama.
C) While melodramas were common in early American movie history, they have become scarcer in more recent years.
D) Melodrama does not mix well with other genres such as adventure or historical epics.