Read the following context and choose the best option to answer the question.
Context: They knew their empathetic human counterparts were too weak to fight those within the darkness . So they , by day , changed us as the others frenzied at night . Slowly , we all changed and scattered to the four winds at the command of those who converted us . That was the deep sleep I had awakened from .
Question: Who are their counterparts ?
Options: 
A. None of the above choices .
B. Their pets .
C. Their animals .
D. The people who own them as pets .


D