Please answer the following question: Vistas High School Program -  Vistas High School Program is an alternative public high school program based in unincorporated Harris County Texas United States and part of the Klein Independent School District. Vistas serves grades 9 through 12. The program has a Houston Texas mailing address but is not located in the Houston city limits. The Director is Peggy Ekster. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Educational Institution