Why is depression compared to a black cloud? 

Mr. Utterson, a lawyer, learns about the detestable Mr. Hyde and investigates the connection between him and Dr. Jekyll. Utterson learns that Dr. Jekyll dislikes talking about Mr. Hyde. Mr. Hyde commits murder and goes into hiding. Both Dr. Jekyll and Dr. Lanyon then fall ill after a fight. Dr. Lanyon soon dies, but before he does, he gives Mr. Utterson a letter to read if Dr. Jekyll dies or disappears. Soon after, Mr. Utterson finds Mr. Hyde dead in Dr. Jekyll’s laboratory, with no trace of Dr. Jekyll. Mr. Utterson then goes home to read the documents.

Explanation:

The correct answer is: D) Mrs. Reed would not allow her to join the other children.

The question is from the Jane Eyre by  Charlotte Brontë, English writer.

The answer D is correct because Mrs. Reed never treats Jane like other children, because Jane is her niece. Mrs. Reed is cold-hearted woman who favors her own children. Even Mrs. Reed´s son beats and verbally abuses Jane.