Grotesque is used to describe something ugly. 
Macabre is used to describe something that is disturbing to the extent of invoking fear of causing death. 
The 2 words vary in their severity, though they are similar in their meaning.

Among the give options, Sorcery and Necromancy are the words that are similar in meaning. 
Sorcery is used to define the use of black magic. 
Necromancy means using sorcery to communicate with the dead. 
Therefore, option D is the right answer.