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.

Example Input: Question: Which movie did Indrajith Sukumaran act in immediately preceding his role in Amen? Passage:It took another two years before he came up with his third movie, Amen, in 2013, which had Indrajith Sukumaran, Fahad Fasil, Swathi Reddy and Kalabhavan Mani in the lead roles and the movie succeeded at the box office while drawing good critical response. After a gap of almost two years, Pellissery released his fourth film, Double Barrel, a comic thriller, with Prithviraj Sukumaran, Indrajith Sukumaran, Arya, Sunny Wayne and Asif Ali in the lead roles. However, the film did not succeed critically or commercially. The next project, Angamaly Diaries, a black comedy cloaked in a gangster plot that revolves around the locale of Angamaly, was scripted by popular actor, Chemban Vinod Jose. The film, made on a small budget of million, was received well at the box office and drew critical acclaim; Anurag Kashyap opined that Angamaly Diaries was his film of the year. Ee.Ma.Yau, his next film based on a satire written by P. F. Mathews and with his regular composer, Prashant Pillai, scoring the music, was premiered on November 30, 2017 but the release was delayed due to undisclosed reasons. Before it was released on May 4, 2018, the film received the Kerala State Film Award for Best Director at the 48th Kerala State Film Awards. The film also won him the Silver Peacock Award for the best director at the 49th International Film Festival of India (IFFI), 2018, which was held in Goa in November 2018 (Chemban Vinod Jose, the protagonist of the film, also received the Silver Peacock Award for the best actor.) followed by the Sinema Zetu International Film Festival Award for Best Direction.
Links: a. Indrajith Sukumaran b. Arya (actor) c. P. F. Mathews d. Chemban Vinod Jose
Example Output: a

Example Input: Question: What was the time span between the release of Nue Propriete and Private Lessons? Passage:Lafosse studied at the IAD (Institut des arts de diffusion) at Louvain-la-Neuve between 1997 and 2001. His graduation film Tribu, a 24-minute short, won the best Belgian short subject category at the 2001 Namur Film Festival. His first full-length feature, Folie Privee (2004), won the FIPRESCI award at the Bratislava International Film Festival., and the semi-autobiographical Ca rend heureux (2006) took the Grand Prix at the 2007 Premiers Plans d'Angers festival. 2006 also saw the release of Nue Propriete, starring Isabelle Huppert and brothers Jeremie and Yannick Renier, which debuted at the Venice Film Festival where it was nominated for the Golden Lion and won a SIGNIS award. The film received the Andre Cavens Award for Best Film by the Belgian Film Critics Association (UCC). For his film Private Lessons (Eleve libre), he was nominated for two Magritte Awards in the category of Best Director and Best Screenplay.
Links: a. Jeremie Renier b. 63rd Venice International Film Festival c. Golden Lion d. Private Lessons (2008 film)
Example Output: d

Example Input: Question: What substance was the helmet gilded with? Passage:The tomb was originally a monumental temple at Golyama Kosmatka Mound, built in the second half of the 5th century BC. After extended use as a temple, at the later part of the 3rd century BC, Seuthes lll was buried inside. The sarcophagus-chamber contained personal belongings that were necessary for the afterlife of the King. It includes knee pads, a gilded helmet with images, leather armour with a collar (plastron made of golden threads), a large sword and spears. There are bronze vessels, and three big ceramic amphora which were filled with thick Thracian wine. The floor and the ritual bed are covered by a carpet woven in gold thread. The total weight of the gold including all the objects is more than one kilogram. There are thirteen gold appliques for horse halters with images of human, animals and plants - objects which are rare in Thracian archaeology. Another two rectangular objects are golden with figures of standing warriors, used as a decoration for the sword sheath. There is a massive circular decoration for the King's armour. The handle of the rod is also golden. In the grave are placed golden vessels with two handles for drinking wine, also called kiliks, and a remarkable golden wreath with twigs, leaves and acorns and many other items.
Links: a. Seuthes III b. Seuthes III c. Wreath d. Gold
Example Output:
a