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 single from the album Hearsay was released last? Passage:On release, the album was received favourably by the majority of music critics. O'Neal's most commercially successful solo album, in the United States it went on to peak at number 29 on the Billboard 200 and number two on Top R&B/Hip-Hop Albums. The album was even more successful in the United Kingdom, peaking at number four and producing seven charting singles, including five top 40 hits. "Fake" peaked at number 33 on the UK Singles Chart; "Criticize" peaked at number four; "Never Knew Love Like This" at number 26; "The Lovers" at number 28; "(What Can I Say) To Make You Love Me" at number 27; "Sunshine" at number 72. Several remixes of the album's songs also charted: "Fake '88", (No. 16); "Hearsay '89", (No. 56). Two of the tracks, "Fake" and "Criticize", were also popular anthems in UK dance clubs. The album went on to be certified gold by the RIAA on October 20, 1987. In the UK, it sold more than 900,000 copies, being certified 3 Platinum by the BPI.
Links: a. UK Singles Chart b. Criticize (song) c. Never Knew Love Like This d. Fake (Alexander O'Neal song)
Example Output: d

Example Input: Question: How long is the river that's located in western Sweetwater County? Passage:It rises in western Wyoming, in northern Sublette County, on the western side of the Continental Divide in the BridgerTeton National Forest in the Wind River Range. It flows south through Sublette County and western Wyoming in an area known as the Upper Green River Valley, then southwest and is joined by the Big Sandy River in western Sweetwater County. At the town of La Barge, it flows into Fontenelle Reservoir, formed by Fontenelle Dam. Below there, it flows through open sage covered rolling prairie where it is crossed by the Oregon, California and Mormon emigration trails and then further south until it flows past the town of Green River and into the Flaming Gorge Reservoir in Southwestern Wyoming, formed by the Flaming Gorge Dam in northeastern Utah. Prior to the creation of the reservoir, the Blacks Fork joined the Green River south of Green River, today the mouth of Blacks Fork is submerged by the reservoir.
Links: a. Big Sandy River (Wyoming) b. Flaming Gorge Reservoir c. Sweetwater County, Wyoming d. Mormon Trail
Example Output: a

Example Input: Question: What other teams does Dallara build cars for? Passage:In October 2004, the Midland Group announced its intention to enter Formula One motor racing in 2006, with plans to use a car built by the Italian manufacturer Dallara In January 2005 the group changed plans by purchasing the Jordan Grand Prix team. They kept the yellow-liveried EJ15 cars and declared 2005 to be a year of learning. Under the name Midland F1 Racing, the team made its debut with a brand-new car and livery at the start of the 2006 Formula One season. With this team, Shnaider declared his intention to bring the first Russian driver into the sport, a feat not achieved until Vitaly Petrov's entrance into F1 with Renault, three years after Schnaider sold the team. On 9 September 2006, the team was sold to Spyker Cars for $106.6 million. From the beginning of the 2008 season, the team became known as Force India and remained active until 2018, when a group of consortium led by Lawrence Stroll bought the team in 2018 following a financial collapse that forced Force India to be put under administration. The team currently competes under the Racing Point banner.
Links: a. Dallara b. Spyker Cars c. Vitaly Petrov d. Midland F1 Racing
Example Output:
a