What is the advantage of a variable incidence tailplane over a fixed incidence tailplane with elevator and trim tab?

Question

Question ATPL - Airline Transport Pilot license - Principles of Flight

QuizVDS · Accepted Answer

Less trim drag and maximum elevator authority retained.

QuizVDS · Answer

Linkages and mechanism less complicated.

QuizVDS · Answer

Increased flight stability and less weight.

QuizVDS · Answer

Elevator movement is restricted at high speed.

Id 403 - ATPL - What is the advantage of a variable incidence tailplane over a fixed incidence tailplane with elevator and trim tab?