Question

What term is used to describe an underlying message that ties a piece of writing together?

Answer 1

Its actually theme. time 4 learning

Answer 2

The term used to describe an underlying message that ties a piece of writing together is D - a plot. 
A plot is also known as the storyline or the narrative of the story. It is the outline of the piece of writing. The plot is made up of a series of casual events. It brings all the different elements of the story together to form a cohesive unit. The plot is used as a vehicle to drive the underlying message home.