Hōjō Tokimune (北条 時宗 June 5 1251 – April 20 1284) of the Hōjō clan was the eighth shikken (officially regent (of shogun) but de facto ruler of Japan) of the Kamakura shogunate (reigned 1268–84) known for leading the Japanese forces against the invasion of the Mongols and for spreading Zen Buddhism and by extension Bushido among the warrior class. 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?
Office Holder

Solvita Āboltiņa (born February 19 1963) is a Latvian politician who is Speaker of the Saeima (Latvian Parliament) since 2010. 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?
Office Holder

Diprotodon meaning two forward teeth sometimes known as the giant wombat or the hippopotamus wombat is the largest known marsupial ever to have lived. Along with many other members of a group of unusual species collectively called the Australian megafauna it existed from approximately 1.6 million years ago until extinction some 46000 years ago (through most of the Pleistocene epoch). 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?
Animal