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: Which of Messner's teachers at the University of Munich was older? Passage:After Meissner’s abitur at the Humanistisches Gymnasium, in 1910, he began the study of physics and mathematics at University of Tübingen. After three terms, he went to the University of Munich as a student of the experimentalist Wilhelm Röntgen and the theoretician Arnold Sommerfeld. After one year at Munich, he returned to Tübingen to be able to study spectroscopy with Friedrich Paschen. While still a student in 1914, Meissner was able to prove the existence of oxygen lines in the solar spectrum. He was awarded his doctorate in 1915, on a thesis with the title Interferometrische Wellenlängenbestimmung im infraroten Spektralbereich. In 1916 he became an assistant to Edgar Meyer at the University of Zurich, under whom he completed his Habilitation, in 1918, with the Habilitationsschrift title Untersuchungen des Neonspektrums. The following year, he married the Polish physicist Doctor Janka Kohn.
 Links: a. Habilitation b. Ludwig Maximilian University of Munich c. University of Tübingen d. Wilhelm Röntgen
d

Question: What is the location of the headquarters for the company that makes 3M tape? Passage:Surgical tape or medical tape is a type of pressure-sensitive adhesive tape used in medicine and first aid to hold a bandage or other dressing onto a wound. These tapes usually have a hypoallergenic adhesive which is designed to hold firmly onto skin, dressing materials, and underlying layers of tape, but to remove easily without damaging the skin. They allow air to reach the skin ("breathable"). Some breathable tapes such as Kinesiology Tape, and other elastic bandages with adhesive are made of cotton. Surgical tape is often white because it contains zinc oxide, which is added to help prevent infections. Tapes made of microporous material, such as 3M Micropore, are widely used.
 Links: a. Adhesive b. Adhesive tape c. Adhesive d. 3M
d

Question: Which dam was built last? Passage:Dhanbad district forms a part of the Chota Nagpur Plateau, but it is more of an upland than a plateau. The district has two broad physical divisions – the southern part is a coal mining area with mining and industrial towns, and the northern part has villages scattered around hills. The landscape of the southern part is undulating and monotonous, with some scars of subsidence caused by underground mining. One of the many spurs of Parashnath Hills (1,365.50 m), in neighbouring Giridih district, passes through the Topchanchi and Tundi areas of the district. The spur attains a height of 457.29 m but there is no peak as such. The Dhangi Hills (highest peak 385.57 m) run from Pradhan Khunta to Gobindpur. While the main river Damodar flows along the southern boundary, its tributary, the Barakar, flows along the northern boundary. DVC has built two dams across the rivers. The Panchet Dam is across the Damodar and the Maithon Dam is across the Barakar.
 Links: a. Panchet Dam b. Maithon Dam c. Pradhan Khunta d. Damodar Valley Corporation

a