Over the Last Century,the Approaches to Studying Leadership Have Been

Over the last century,the approaches to studying leadership have been largely:

A) changing,from trait-based views to behavioral views to developmental views
B) changing,from a behavioral view to a liberational view to a trait-based view
C) changing,from a behavioral view to a trait-based view to a situational view
D) static,with a behavioral view
E) static,with a mixture of views