Please answer the following question: Maria de Lourdes Ruivo da Silva de Matos PintasilgoGCCGCIH (Portuguese pronunciation: [mi d lud pitsiu]); (Abrantes Sao Joao Baptista 18 January 1930 Lisbon 10 July 2004) was the first and to date only woman to serve as Prime Minister of Portugal and the third woman to serve as Prime Minister in Europe after Margaret Thatcher who had been firstly elected for this capacity two months before. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Office Holder