Read the following context and choose the best option to answer the question.
Context: Like a foreign language . The tone of the creature 's voice changed . " Aurelia , do you know what I ' m going to do to you if you do n't show yourself to me ? I ' m going to kill you .
Question: Why did the tone of the creature 's voice change ?
Options: 
- The creature was having a hard time adjusting to his voice change and needed help .
 - None of the above choices .
 - The creature was getting upset since he did not understand the foreign language of Aurelia .
 - The creature was getting mad at Aurelia and wanted to see her .


The creature was getting mad at Aurelia and wanted to see her .