Answer:
The whole senctnece because the sentence starts with because.
During Shakeaspeare time, people actually believed in witches and demons. They were extremely superstitious, and mystical/supernatural beliefs affected their everyday lives. If someone was ill, it was not uncommon to believe that person was cursed, for example. So seeing the supernatural being represented on a stage was especially frightening, which is also why magic and the supernatural are a recurring theme in Shakespeare plays.
<span>C. A thorough explanation of the process is given in the report. (See pages 5-11) contains an errors because there should be a period after "</span>(<span>See pages 5-11)". </span>