instruction:
In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.
question:
Question: Which group was organized the earliest, the 1st King's Dragoon Guards or the 2nd Dragoon Guards (Queen's Bays)? Passage:The 1st King's Dragoon Guards was a cavalry regiment in the British Army. The regiment was raised by Sir John Lanier in 1685 as the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II. It was renamed the 2nd King's Own Regiment of Horse in 1714 in honour of George I. The regiment attained the title 1st King's Dragoon Guards in 1751. The regiment served as horse cavalry until 1937 when it was mechanised with light tanks. The regiment became part of the Royal Armoured Corps in 1939. After service in the First World War and the Second World War, the regiment amalgamated with the 2nd Dragoon Guards (Queen's Bays) in 1959 to form the 1st The Queen's Dragoon Guards.
 Links: a. British Army b. 1st The Queen's Dragoon Guards c. 2nd Dragoon Guards (Queen's Bays) d. British Army
answer:
c


question:
Question: How old was Beloff's husband when he died? Passage:Anne Beloff was born in 1921 in Hampstead to Simon Beloff and Marie Katzin. Her parents were of Russian–Jewish background, and her siblings included the historian Max Beloff, Baron Beloff, the psychologist John Beloff, the journalist Nora Beloff, and the politician Renee Soskin. She earned a degree in chemistry from University College London in 1942 before completing a PhD in the biochemistry of skin burns with Rudolph Peters at the University of Oxford. She visited Harvard Medical School in 1946 to perform research and returned to the UK in 1948. In the same year she married Ernst Boris Chain, a biochemist who had won the Nobel Prize in Physiology or Medicine in 1945, and moved with him to Rome.
 Links: a. Harvard Medical School b. Ernst Chain c. University of Oxford d. Hampstead
answer:
b


question:
Question: What are some of the other famous castles in Wales? Passage:Penhow is best known for Penhow Castle, which has claims to be the oldest inhabited castle in Wales. It was built by Sir Roger de St Maur, one of the Norman knights who served the Norman Lord of Striguil at Chepstow Castle. He built a tower house, and documentary evidence shows that he was at Penhow by 1129. It is the first known British home of the St Maur alias Seymour family which rose to national prominence in the 16th century in the person of Queen Jane Seymour, the third wife of King Henry VIII, represented today by the Duke of Somerset. Later the Seymour family, which moved to Hatch Beauchamp in Somerset and Wulfhall in Wiltshire, sold Penhow Castle to the Lewis family of St. Pierre, who converted the castle to a modern residence in 1674. Thomas Lewis' son Thomas was High Sheriff of the county, and married the daughter of Sir Richard Levett, Lord Mayor of London. The Lewis family retained ownership of Penhow Castle for several centuries.
 Links: a. Striguil b. Castle c. St Pierre, Monmouthshire d. Castle
answer:

b