In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Question: Why did the Nok culture die off about 200 AD on the Jos Plateau? Passage:The Nok culture thrived from approximately 1,500 BC to about 200 AD on the Jos Plateau in north and central Nigeria and produced life-sized terracotta figures that include human heads, human figures, and animals. Iron smelting furnaces at Taruga, a Nok site, date from around 600 BC. The Nok culture is thought to have begun smelting iron by 600-500 BC and possibly some centuries earlier. Kainji Dam excavations revealed iron-working by the 2nd century BC. Evidence of iron smelting has also been excavated at sites in the Nsukka region of southeast Nigeria in what is now Igboland: dating to 2,000 BC at the site of Lejja (Uzomaka 2009) and to 750 BC and at the site of Opi (Holl 2009). The transition from Neolithic times to the Iron Age apparently was achieved indigenously without intermediate bronze production. Others have suggested that the technology moved west from the Nile Valley, although the Iron Age in the Niger River valley and the forest region appears to predate the introduction of metallurgy in the upper savanna by more than 800 years. The earliest iron technology in West Africa has also been found to be contemporary with or predate that of the Nile valley and North Africa, and some archaeologists believe that iron metallurgy was likely developed independently in sub-Saharan West Africa.

b

Question: Of the two artists who influenced Jones, which was the eldest? Passage:Carroll Nathaniel Jones III (July 2, 1944 - June 22, 2017) was an artist in the style of American realism. Carroll grew up in New Providence, New Jersey where his father, an illustrator for Life (magazine), was his first art teacher. He taught Carroll techniques of the Old Masters, who emphasized light, perspective, and composition. Carroll went to school in New York City (NYC) and enrolled in the Phoenix School of Design at age 17. He later attended Hartford Art School and became a commissioned portraitist for 10 years. His work, Church Window was recognized in the New York Times, and he moved away from portraits to recreate scenes that sparked memories of his childhood. He was most influenced by Andrew Wyeth and Edward Hopper. The Coe-Kerr Gallery of NYC and Whistler's Daughter Gallery of New Jersey represented him, as well as contemporaries Wyeth and Hopper. Malcolm Forbes, Frederick R. Koch, Stephen Sondheim, William Schuman, and Jean Shepherd held private collections of his work. He exhibited at Newark Museum and Trenton Art Museum in New Jersey, and in universities, galleries and museums in seven states by his mid-thirties. His work is part of the permanent collections of Seton Hall University and Newark Museum. Art critic Marion Filler considered his work Magic realism, a quiet movement made popular in America beginning in the 1920s by Hopper, and related to Surrealism.

b

Question: Who was the main author of the Magna Carta? Passage:During the 24 November 1999 Parliamentary debate on the rule of law, Jeyaretnam traced the doctrine to the Magna Carta, and said that it was to be found in the Constitution of Singapore, particularly in Article 9 and Article 12, which respectively protect the rights to life and personal liberty, and equality rights. He also noted that in the court judgment Ong Ah Chuan v Public Prosecutor (1980), the Privy Council had held that in phrases such as "in accordance with law" and "equality before the law" in the Constitution, the term law does not only mean Acts passed by Parliament, but also includes the fundamental rules of natural justice that have been accepted and become part and parcel of the common law. He then cited eight instances of the Government's alleged non-compliance with the rule of law, including detention without trial under, inter alia, the ISA and the Criminal Law (Temporary Provisions) Act ("CLTPA"); denial of the right of arrested persons to counsel and to visits from their families for a period of time; denial of the rights to freedom of speech and assembly; and the tendency of the executive not to provide reasons for decisions made. Opposition MP Chiam See Tong complained that the Government had not treated opposition parties fairly as regards applications for licences for events.


a