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.

[Q]: Question: What are earthwork mounds made of? Passage:Indigenous peoples inhabited Missouri for thousands of years before European exploration and settlement. Archaeological excavations along the rivers have shown continuous habitation for more than 7,000 years. Beginning before 1000 CE, there arose the complex Mississippian culture, whose people created regional political centers at present-day St. Louis and across the Mississippi River at Cahokia, near present-day Collinsville, Illinois. Their large cities included thousands of individual residences, but they are known for their surviving massive earthwork mounds, built for religious, political and social reasons, in platform, ridgetop and conical shapes. Cahokia was the center of a regional trading network that reached from the Great Lakes to the Gulf of Mexico. The civilization declined by 1400 CE, and most descendants left the area long before the arrival of Europeans. St. Louis was at one time known as Mound City by the European Americans, because of the numerous surviving prehistoric mounds, since lost to urban development. The Mississippian culture left mounds throughout the middle Mississippi and Ohio river valleys, extending into the southeast as well as the upper river.
 Links: a. Archaeology b. Collinsville, Illinois c. Earthworks (archaeology) d. Collinsville, Illinois
[A]: c


[Q]: Question: Which film won the Palme d'or the year that Dzieje grzechu was nominated? Passage:Borowczyk moved into live-action feature film with Goto, l'île d'amour (Goto, Isle of Love) (1968) and Blanche (1971), both tales of illicit love thwarted by jealous husbands, and both starring his own wife, Ligia Branice. One of his most appreciated films of this period, Dzieje grzechu (A Story of Sin) (1975), which was nominated for Palme d'or, is an adaptation of a Polish literary classic by Stefan Żeromski. Like his 1966 short film Rosalie (a Guy de Maupassant adaptation and a Silver Bear winner), Dzieje grzechu had successfully rendered the themes of seduction and infanticide. Contes immoraux (Immoral Tales) (1973) and his later work, including Interno di un convento (Behind Convent Walls) (1977) (inspired by Promenades dans Rome of Stendhal) and Cérémonie d'amour (Rites of Love) (1988) have been controversial, lauded by some for their unique surrealist vision and derided by others as contentless pornography. Especially, La Bête (The Beast, 1975) (based on the novel Lokis by Prosper Mérimée and originally conceived in 1972 as a film on its own, but then in 1973 as the fifth story in Contes immoraux) was seen by many as a decline in the director's career after Dzieje grzechu, except in France, where it was hailed by prominent critics such as Ado Kyrou. His 1980 film Lulu was based on the eponymous character created by Frank Wedekind.
 Links: a. Goto, Island of Love b. The Story of Sin c. Berlin International Film Festival d. Berlin International Film Festival
[A]: b


[Q]: Question: What was the lithography previous to 45 nm? Passage:The Intel Core microarchitecture (previously known as the Next-Generation Micro-Architecture) is a multi-core processor microarchitecture unveiled by Intel in Q1 2006. It is based on the Yonah processor design and can be considered an iteration of the P6 microarchitecture introduced in 1995 with Pentium Pro. High power consumption and heat intensity, the resulting inability to effectively increase clock speed, and other shortcomings such as an inefficient pipeline were the primary reasons why Intel abandoned the NetBurst microarchitecture and switched to a completely different architectural design, delivering high efficiency through a small pipeline rather than high clock speeds. The Core microarchitecture initially did not reached the clock speeds of the NetBurst microarchitecture, even after moving to 45 nm lithography. However after many generations of successor microarchitectures which used Core as their basis (such as Nehalem, Sandy Bridge and more), Intel managed to eventually surpass the clock speeds of Netburst with the Devil's Canyon (Improved version of Haswell) microarchitecture reaching a base frequency of 4 GHz and a maximum tested frequency of 4.4 GHz using 22 nm lithography. 
 Links: a. Central processing unit b. 45 nanometer c. Pentium Pro d. Central processing unit
[A]:
b