An Alexa Skill Builder submitted a child-directed skill for certification that lists the nearest skateboard parks. The Builder ensured that 
- The skill does not link to an external account
- The skill stored the child’s preference by userId
- The skill has a valid privacy policy link in the skill Distribution page
Given this information, why will the skill fail certification? 
A. The Builder did not upload a privacy policy document 
B. Child-directed skills cannot use location information 
C. The child’s userId cannot be used because of Personally Identifiable Information (PII) restrictions. 
D. The skill should not be child-directed as it can be used by children over 13 years old.