Information: - The Turkic Khaganate (552744; Old Turkic: ), Skyturks or Gokturk Khaganate was a khaganate established by the Ashina clan of the Gokturks in medieval Inner Asia. Under the leadership of Bumin Qaghan (d. 552) and his sons, the Ashina succeeded the Rouran Khaganate as the main power in the Mongolian Plateau and established a stronger empire, which rapidly expanded to rule huge territories in Central Asia. This khaganate interacted extensively with various dynasties based in North China, and for significant periods exercised considerable control over the lucrative Silk Road trade. - A viceroy is a regal official who runs a country, colony, city, province, or sub-national state, in the name of and as the representative of the monarch of the territory. The term derives from the Latin prefix "vice-", meaning "in the place of" and the French word "roi", meaning "king". A viceroy's territory may be called a viceroyalty, though this term is not always applied. The adjectival form is viceregal, less often viceroyal. The term vicereine is sometimes used to indicate a female viceroy "suo jure", although viceroy can serve as a gender-neutral term. Vicereine is more commonly used to indicate a viceroy's wife. - The Mongolian language (in Mongolian script: , '; in Mongolian Cyrillic: , ') is the official language of Mongolia and largest-known member of the Mongolic language family. The number of speakers across all its dialects may be 10 million, including the vast majority of the residents of Mongolia and many of the Mongolian residents of the Inner Mongolia Autonomous Region. In Mongolia, the Khalkha dialect, written in Cyrillic (and at times in Latin for social networking), is predominant, while in Inner Mongolia, the language is dialectally more diverse and is written in the traditional Mongolian script. In the discussion of grammar to follow, the variety of Mongolian treated is Standard Khalkha Mongolian (i.e., the standard written language as formalized in the writing conventions and in the school grammar), but much of what is to be said is also valid for vernacular (spoken) Khalkha and for other Mongolian dialects, especially Chakhar. - Khagan or Qagan ("Khaan", Mongolian Script: , "Qaan" "Khqn", alternatively spelled Kagan, Khaghan, Kha-khan, Xagahn, Qaghan, Chagan, , or Kha'an) is a title in the Mongolian language equal to the status of emperor and used to refer to someone who rules a khaganate or empire. The title was adopted by Ogedei Khan from the Turkic title "kaan". The female equivalent is Khatun. - An emperor (through Old French "empereor" from ) is a monarch, usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ("empress consort"), mother ("empress dowager"), or a woman who rules in her own right ("empress regnant"). Emperors are generally recognized to be of a higher honour and rank than kings. In Europe the title of Emperor was, since the Middle Ages, considered equal or almost equal in dignity to that of Pope, due to the latter's position as visible head of the Church and spiritual leader of Western Europe. The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor". - Tardu ( died 603 ) was the second yabgu and the first khagan of the Western Turkic Khaganate . - The Western Turkic Khaganate or Onoq Khaganate was a Turkic khaganate formed as a result of the wars in the beginning of the 7th century (593603 AD) after the split of the Gokturk Khaganate (founded in the 6th century in Mongolia by the Ashina clan) into the Western khaganate and the Eastern Turkic Khaganate. - The classical Mongolian script (in Mongolian script: "Mongol biig"; in Mongolian Cyrillic: "Mongol bichig"), also known as Hudum Mongol bichig, was the first writing system created specifically for the Mongolian language, and was the most successful until the introduction of Cyrillic in 1946. Derived from Sogdian, Mongolian is a true alphabet, with separate letters for consonants and vowels. The Mongolian script has been adapted to write languages such as Oirat and Manchu. Alphabets based on this classical vertical script are used in Inner Mongolia and other parts of China to this day to write Mongolian, Xibe and, experimentally, Evenki. - The Eastern Turkic Khaganate (Chinese: ; pinyin: Dng tjue) was a Turkic khaganate formed as a result of the internecine wars in the beginning of the 7th century (593 603 AD) after the Gokturk Khaganate (founded in the 6th century in Mongolia by the Ashina clan) had splintered into two polities Eastern and Western. - Yabgu (Old Turkic: , yabu, Traditional Chinese: , Simplified Chinese: , Jabgu, Djabgu, literally, "pioneer", "guide") was a state office in the early Turkic states, roughly equivalent to viceroy. The title carried autonomy in different degrees, and its links with the central authority of Khagan varied from economical and political subordination to superficial political deference. The title had also been borne by Turkic princes in the upper Oxus region in post-Hephthalite times. - Ogedei Khan, born Ogedei (also Ogodei; Mongolian: ; Chinese: : 7 November 1186 11 December 1241), was the third son of Genghis Khan and second Great Khan of the Mongol Empire, succeeding his father. He continued the expansion of the empire that his father had begun, and was a world figure when the Mongol Empire reached its farthest extent west and south during the Mongol invasions of Europe and East Asia. Like all of Genghis' primary sons, he participated extensively in conquests in China, Iran, and Central Asia. After reading the paragraphs above, we are interested in knowing the entity with which 'tardu' exhibits the relationship of 'family name'. Find the answer from the choices below. Choices: - an - ashina - day - french - he - head - may - power
A:
ashina