I'm guessing a dummy run is something that you use a test dummy to see how something will work, example a crash dummy were they put inside a car that crashes to a solid object . a trial run/procedure kind.
(hope this help)
B.) Therefore
These provide transitions in sentences, particularly sentences with 2 clauses.
Generally the most important part of a main idea is the topic sentence.
The author makes you feel like you're a part of the book , he gives you imagery , where you can visualize the story .
It's D. The answer is D. Your welcome
