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: When was the man whose name is used as the unit of radio wave frequency born? Passage:A modulated radio wave, carrying an information signal, occupies a range of frequencies. See diagram. The information (modulation) in a radio signal is usually concentrated in narrow frequency bands called sidebands (SB) just above and below the carrier frequency. The width in hertz of the frequency range that the radio signal occupies, the highest frequency minus the lowest frequency, is called its bandwidth (BW). A given amount of bandwidth can carry the same amount of information (data rate in bits per second) regardless of where in the radio frequency spectrum it is located, so bandwidth is a measure of information-carrying capacity. The bandwidth required by a radio transmission depends on the data rate of the information (modulation signal) being sent, and the spectral efficiency of the modulation method used; how much data it can transmit in each kilohertz of bandwidth. Different types of information signals carried by radio have different data rates. For example, a television (video) signal has a greater data rate than an audio signal.
Links: a. Data signaling rate b. Carrier wave c. Hertz d. Audio signal
c

Question: Was Sylvain Levi a native speaker of Sanskrit? Passage:Following his completion of secondary school, Demieville spent time studying in Munich, London, and Edinburgh, where he was able to attend lectures by George Saintsbury at the University of Edinburgh. He then attended the University of Paris, where he wrote an essay on the musical suite of the 17th and 18th centuries and was awarded a licentiate degree in 1914. Demieville then spent the year 1915 studying at King's College London where he was introduced to Chinese, which quickly became his focus. After returning to France, Demieville studied at the Ecole des Langues Orientales Vivantes (School of Living Oriental Languages), after which he moved to the College de France, where he further studied Chinese under the tutelage of Edouard Chavannes and began learning Sanskrit from Sylvain Levi. He earned his Diplome from the Ecole des Langues Orientales Vivantes in 1919.
Links: a. Edinburgh b. Sanskrit c. Sanskrit d. Sylvain Levi
b

Question: What is the current population of the country where Baker served during the Second Boer War? Passage:Born on 13 December 1863, Arthur Slade Baker was educated at Bedford School. He received his first commission as a second lieutenant in the Royal Artillery in 1882, was promoted to the rank of lieutenant on 1 October 1882, to the rank of captain on 1 October 1891, and to the rank of major on 1 April 1900. He served during the Second Boer War in South Africa between 1900 and 1901. In June 1902 he was appointed as Inspector, General Stores division, of the Army Ordnance Department, serving at Woolwich until 1905. He was Deputy Assistant Director at the War Office between 1908 and 1912. He was promoted to the rank of Lieutenant Colonel in 1912. He served during the First World War, and was promoted to the rank of Brigadier General.
Links: a. South Africa b. South Africa c. Woolwich d. South Africa
a