The NCMEC assists with various missing persons cases focused on children, but they do not assist with cases involving missing persons over the age of 18. Therefore, the correct option is c. Missing persons over the age of 18. NCMEC's mission is primarily dedicated to individuals under 18 years of age. ;
The NCMEC primarily assists with missing persons cases involving children. They do not assist with cases concerning missing persons over the age of 18. Therefore, the correct answer is C, Missing persons over the age of 18.
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