challenge: What was Alfonso Rodríguez Gómez de Celis's role in the student mobilizations against the General Organic Law of the Educational System in the late 1980s?
  
  A. He was a teacher who led a separate movement against the law
  B. He was one of the leading figures of the Student Union and an architect of the agreements with the Ministry of Education
  C. He was a government official who opposed the student union
  D. He was a bystander who observed the mobilizations from afar
  Answer: 