what is one effect that an in medias res opening is meant to have on the
reader?

This question is incomplete. Here´s the complete question.

What is one effect that an in medias res opening is meant to have on the reader?

A.The reader is meant to guess about the nature of the conflict.

B.The reader is meant to question deeply held notions about setting and point of view.

C.The reader is meant to pick up on the theme of the story.

D.The reader is meant to immediately worry how the story will turn out for the main character.

D. The reader is meant to immediately worry how the story will turn out for the main character.

Explanation:

In medias res is a Latin expression that means “in the midst of things,” and it means starting a story from the middle instead of the beginning. Readers are therefore immediately compelled to find some answers about the preceding action as well as the following results. The purpose of this literary device is to create suspense.

a complex sentence consists of an independent clause and one or more dependent clauses.  

to write complex sentences, we must use subordinating conjunctions.  

all the complex sentences begin with a subordinating conjunction and when it occurs, a comma must be place at the end of the dependent clause. on the contrary, if the sentence begins with an independent clause, then no comma is used.

after  

although  

as  

because  

before  

if  

since  

when  

for example,  

after she won the competition, she became very popular.  

although my father was hurt, he continued fighting for his rights.  

as all of you got a ten, you will be able to leave early today.  

before he went to the war, he asked his parents to bless him.  

if it is cold, i won’t go out.  

since you didn’t bring the homework, you will get low grades.  

when it is hot in the town, everyone goes to the beach.