Read the following context and choose the best option to answer the question.
Context: Nova eyed the pool of sand and jumped on X 's back , holding on tightly . " You are covered in sand . " The female brushed some of it off and settled , holding on .
Question: What do you know about X ?
Options: 
A. X holds on tightly .
B. None of the above choices .
C. X jumped on Nova .
D. X is covered in particles .


D