challenge: Who were some of the children, including Ayakha Melithafa, who filed a complaint to the United Nations Committee on the Rights of the Child?
  
  A. Greta Thunberg, Alexandria Villaseñor, Carl Smith, and Catarina Lorenzo
  B. Nelson Mandela, Albert Einstein, and Marie Curie
  C. Greta Thunberg, Alexandria Villaseñor, and Malala Yousafzai
  D. Jane Goodall, David Attenborough, and Leonardo DiCaprio
  Answer: 