Given the question: Information: - Ptolemy I Soter I ("Ptolemaos Str", i.e. Ptolemy (pronounced ) the Savior), also known as Ptolemy Lagides (c. 367 BC 283/2 BC), was a Macedonian general under Alexander the Great, one of the three Diadochi who succeeded to his empire. Ptolemy became ruler of Egypt (323283/2 BC) and founded a dynasty which ruled it for the next three centuries, turning Egypt into a Hellenistic kingdom and Alexandria into a center of Greek culture. He assimilated some aspects of Egyptian culture, however, assuming the traditional title pharaoh in 305/4BC. The use of the title of pharaoh was often situational: pharaoh was used for an Egyptian audience, and Basileus for a Greek audience, as exemplified by Egyptian coinage. - Cassander (Greek: , "Kassandros son of Antipatros"; ca. 350 BC 297BC), was king of the Ancient Greek kingdom of Macedon from 305 BC until 297 BC, and de facto ruler of much of Greece from 317 BC until his death. - The Diadochi (plural of Latin Diadochus, from , "Diadokhoi", "successors") were the rival generals, families and friends of Alexander the Great who fought for control over his empire after his death in 323BC. The Wars of the "Diadochi" mark the beginning of the Hellenistic period. - Alexander III of Macedon (20/21 July 356 BC 10/11 June 323 BC), commonly known as Alexander the Great ("Alexandros ho Megas" ), was a king ("basileus") of the Ancient Greek kingdom of Macedon and a member of the Argead dynasty. Born in Pella in 356 BC, Alexander succeeded his father, Philip II, to the throne at the age of twenty. He spent most of his ruling years on an unprecedented military campaign through Asia and northeast Africa, and by the age of thirty he had created one of the largest empires of the ancient world, stretching from Greece to northwestern India. He was undefeated in battle and is widely considered one of history's most successful military commanders. - Antipater (c. 397 BC 319 BC) was a Macedonian general and statesman under kings PhilipII of Macedon and Alexander the Great, and father of King Cassander. In 320BC, he became regent of all of Alexander the Great's Empire. - Eurydice ( in Greek , Evridiki ) was the daughter of Antipater and the wife of Ptolemy I Soter . The period of her marriage is not mentioned by any ancient writer , but it is probable that it took place shortly after the partition of Triparadisus , and the appointment of Antipater to the regency in 321 BC. She was the mother of three sons : Ptolemy Keraunos , Meleager , who succeeded his brother on the throne of Macedonia and a third child , whose name is unknown , who was put to death by Ptolemy II Philadelphus , who was the illegitimate son of Ptolemy I Soter and Bernice . Eurydice also had two daughters ; Ptolemais , who married Demetrius I of Macedon ( who was also married to Eurydice 's sister Phila , and Lysandra , the wife of Agathocles , who was the son of Lysimachus and Nicaea . Ptolemy I Soter , according to the customs of the day , had several concubines and latterly neglected Euydice for Berenice . It was probably from resentment on this account , and for the preference shown to the children of Berenice , that she withdrew from the court of Ptolemaic Egypt . In 287 BC she was residing at Miletus , where she welcomed Demetrius I of Macedon , and gave him her daughter for marriage . This was a great offense to Ptolemy I Soter as he and Demetrius were political enemies , having fought wars against each other , and Demetrius having conquered and captured much of Ptolemy 's sovereign . After reading the paragraphs above, we are interested in knowing the entity with which 'eurydice of egypt' exhibits the relationship of 'brother'. Find the answer from the choices below. Choices: - alexander - antipater - cassander - philip ii of macedon - ptolemy
The answer is:
cassander