Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Lakeland Senior High School (Florida) -  Lakeland Senior High School is the oldest public high school in Lakeland Florida United States. Lakeland Senior High School belongs to the Polk County School Board and is a member of Polk District Schools. Lakeland High School was the original high school in the city. It also shares its campus with The Lois Cowles Harrison School For The Arts. Harrison students attend academic classes at Lakeland Senior High School. In 2001 Lakeland Senior High underwent a massive renovation.
A:
Educational Institution