Absolute silence reigned in the whole necropolis.

The correct answer is: A. cemetery.

A cemetery is a place where dead people are buried. It is also called a graveyard, necropolis, or boneyard. Cemeteries are usually located in quiet, peaceful places. They are often surrounded by trees and flowers.

The other options are incorrect because they do not refer to places where dead people

• Hell is a place of eternal punishment in some religions.
• A cenotaph is a monument erected in memory of someone who is buried elsewhere.
• A churchyard is a cemetery that is attached to a church.