In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: The Parthian Empire (247 BC  224 AD), also known as the Arsacid Empire, was a major Iranian political and cultural power in ancient Iran and Iraq. Its latter name comes from Arsaces I of Parthia who, as leader of the Parni tribe, founded it in the mid-3rd century BC when he conquered the region of Parthia in Iran's northeast, then a satrapy (province) in rebellion against the Seleucid Empire. Mithridates I of Parthia (r. "c". 171138 BC) greatly expanded the empire by seizing Media and Mesopotamia from the Seleucids. At its height, the Parthian Empire stretched from the northern reaches of the Euphrates, in what is now central-eastern Turkey, to eastern Iran. The empire, located on the Silk Road trade route between the Roman Empire in the Mediterranean Basin and the Han Empire of China, became a center of trade and commerce., Phraates I of Parthia ( Persian :     ) , ruler of the Parthian Empire from ca . 168 -- 165 BCE , perhaps succeeded his father Phriapatius ( 185 -- 170 BCE ) on the throne . However , recent evidence from Nisa suggests that a great - grandson of Arsaces I reigned briefly after Priapatius ' death in 170 . In this reconstruction , this previously unknown `` Arsaces IV '' reigned ca . 170 - 168 BCE and was then succeeded by Phraates I ( this of course would make Phraates Arsaces V ) . Phraates I died relatively young , and appointed as his successor not one of his sons , but his brother Mithridates I ( 165 -- 132 BCE ) ., The Seleucid Empire ("Basileía tn Seleukidn") was a Hellenistic state ruled by the Seleucid dynasty, which existed from 312 BC to 63 BC; it was founded by Seleucus I Nicator following the division of the Macedonian empire vastly expanded by Alexander the Great. Seleucus received Babylonia and, from there, expanded his dominions to include much of Alexander's near eastern territories. At the height of its power, it included central Anatolia, Persia, the Levant, Mesopotamia, and what is now Kuwait, Afghanistan, and parts of Pakistan and Turkmenistan., Arsaces I ("Arshak") was the founder of the Arsacid dynasty of Parthia, and after whom all 30+ monarchs of the Arsacid empire officially named themselves. A celebrated descent from antiquity (the Bagratid "line") begins with Arsaces. Arsaces or Ashk has also given name to the city of Ashkabad., Subject: phraates i, Relation: noble_family, Options: (A) arsacid dynasty of parthia (B) seleucid empire
arsacid dynasty of parthia