Please answer the following question: Abiola Adeyemi Ajimobi (born 16 December 1949) is a Nigerian politician from Oyo State in south-western Nigeria. He was formerly the Managing Director/Chief Executive Officer of the National Oil and Chemical Marketing Company a subsidiary of Shell Petroleum Nigeria. He left the oil sector in 2002 after 26 years and was elected in 2003 as a Senator of the Republic of Nigeria representing Oyo South Senatorial District on the platform of the Alliance for Democracy (AD). 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?
Answer:
Office Holder