TASK DEFINITION: You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.
PROBLEM: Paragraph- Sent 1: Alexander married twice: Roxana, daughter of the Bactrian nobleman Oxyartes, out of love; and Stateira II, a Persian princess and daughter of Darius III of Persia, for political reasons.
Sent 2: He apparently had two sons, Alexander IV of Macedon of Roxana and, possibly, Heracles of Macedon from his mistress Barsine.
Sent 3: He lost another child when Roxana miscarried at Babylon.
Sent 4: Alexander also had a close relationship with his friend, general, and bodyguard Hephaestion, the son of a Macedonian noble.
Sent 5: Hephaestion's death devastated Alexander.
Sent 6: This event may have contributed to Alexander's failing health and detached mental state during his final months.
Sent 7: Alexander's sexuality has been the subject of speculation and controversy.
Sent 8: No ancient sources stated that Alexander had homosexual relationships, or that Alexander's relationship with Hephaestion was sexual.
Sent 9: Aelian, however, writes of Alexander's visit to Troy where "Alexander garlanded the tomb of Achilles and Hephaestion that of Patroclus, the latter riddling that he was a beloved of Alexander, in just the same way as Patroclus was of Achilles".
Sent 10: Noting that the word eromenos (ancient Greek for beloved) does not necessarily bear sexual meaning, Alexander may have been bisexual, which in his time was not controversial.
Sent 11: Green argues that there is little evidence in ancient sources that Alexander had much carnal interest in women; he did not produce an heir until the very end of his life.
Sent 12: However, he was relatively young when he died, and Ogden suggests that Alexander's matrimonial record is more impressive than his father's at the same age.
Sent 13: Apart from wives, Alexander had many more female companions.
Sent 14: Alexander accumulated a harem in the style of Persian kings, but he used it rather sparingly; showing great self-control in "pleasures of the body".
Sent 15: Nevertheless, Plutarch described how Alexander was infatuated by Roxana while complimenting him on not forcing himself on her.
Sent 16: Green suggested that, in the context of the period, Alexander formed quite strong friendships with women, including Ada of Caria, who adopted him, and even Darius's mother Sisygambis, who supposedly died from grief upon hearing of Alexander's death.
Question: Did one of Alexander's wives suffer a miscarriage? (A) Yes (B) Roxana miscarried at Babylon (C) Hephaestion's death devastated Alexander.

SOLUTION: A, B.

PROBLEM: Paragraph- Sent 1: If you have a mass of 50 kg on Earth, what is your weight in newtons?
Sent 2: An object with more mass is pulled by gravity with greater force.
Sent 3: Mass and weight are closely related.
Sent 4: However, the weight of an object can change if the force of gravity changes.
Sent 5: On Earth, the force of gravity is the same everywhere.
Sent 6: So how does the force of gravity change?
Sent 7: It doesnt if you stay on Earth.
Sent 8: What if we travel to another planet or moon in our solar system?
Sent 9: Look at the photo of astronaut Edwin E. Aldrin Jr. taken by fellow astronaut Neil Armstrong in the Figure.
Sent 10: They were the first humans to walk on the moon.
Sent 11: An astronaut weighs less on the moon than he would on Earth.
Sent 12: This is because the moons gravity is weaker than Earths.
Sent 13: The astronauts mass, on the other hand, did not change.
Sent 14: He still contained the same amount of matter on the moon as he did on Earth.
Sent 15: If the astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon.
Sent 16: If his mass on Earth was 80 kg, what would his mass have been on the moon?
Sent 17: [Figure 3].
Question: How does the force of gravity change? (A) It changes with change in weight (B) It changes with change in mass (C) The force of gravity changes depending on where you are in the solar system (D) The force of gravity never changes (E) This is because the moons gravity is weaker than Earths- it changes when you go to a place with less gravity.

SOLUTION: B, C, E.

PROBLEM: Paragraph- Sent 1: Little is known of the earliest Stone Age inhabitants of Europe's southwestern extremity.
Sent 2: The ancient Greeks called them the Cynetes (or Cunetes).
Sent 3: Whatever their origins, their culture evolved under the pressure and influence of foreign forces.
Sent 4: Among the many invading armies that settled here and contributed to nascent Portuguese culture were Phoenicians, who settled in the area around 1,000 b.c., followed by the Celts, Iberians, Greeks, and Carthaginians.
Sent 5: But it was the Romans, who arrived late in the third century b.c., who most greatly influenced all of Iberia.
Sent 6: They built towns, industries, roads, and bridges, developed agriculture, and bequeathed the Latin language, of which Portuguese is a direct descendant.
Sent 7: The Romans named the southwestern province of the peninsula Lusitania, oddly enough for one of the Celtiberian tribes they defeated, and by the third century a.d.
Sent 8: had introduced Christianity.
Sent 9: By the beginning of the fourth century the Algarve had a bishop in place, based in Faro.
Sent 10: But Rome had already fallen into decay, and soon hordes of northern tribesmen took over the empire.
Sent 11: The Algarve fell to the Visigoths in the mid-fifth century.
Sent 12: Under Moorish Rule In a.d.
Sent 13: 711, the Moors brought powerful armies from North Africa and launched a devastating attack on the Iberian peninsula, conquering much of what would become Spain and Portugal.
Sent 14: They imposed Islam and left an indelible influence on the countryside and the population of the Algarve.
Sent 15: The Moorish legacy can still be seen in the form of wells and waterwheels, squat white houses, the dark complexions of the people, and in the very name given the regiontaken from Al-Gharb, which means "country of the west" (when the Moors conquered the territory, it was the most westerly in the known world).
Sent 16: The Moors governed their Iberian kingdoms from across the border in Seville, but the Algarve had its own regional capital and huge, invulnerable fortress.
Sent 17: The capital was Chelb (or Xelb), and it was bigger and better defended than Lisbon.
Sent 18: Today the town, known as Silves, is a provincial outpost whose only besiegers are busloads of tourists who climb the narrow streets up to the old Moorish ramparts.
Question: Who imposed Islam on the population of the Algarve? (A) Romans (B) Africans (C) The Moors.

SOLUTION:
C.