Why is syntax important in a piece of writing? it is essential for clear written communication. it influences the mood of the reader through word choice. it uses word connotations to influence the tone of the writing. it make communication more specific.

Syntax are important in a piece of writing because it is essential for written communication. 
Without syntax, the sentences are harder to understand. 

Example:   Incorrect: While watching a movie, people who text on their phone are very annoying
                  Correct: People who text on their phone while watching a movie are very annoying. 

It just makes the sentence easier to understand. 

Hope that helps! 

A  is the correct answer.

Can you insert a picture?