In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
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Question: Passage: There have been 14 head coaches for the Trail Blazers franchise. The franchise's first head coach was Rolland Todd, who coached for two seasons. Jack Ramsay is the franchise's all-time leader for the most regular season games coached (820), and the most regular season game wins (453). Rick Adelman is the franchise's all-time leader for the highest winning percentage in the regular season (.654), playoff games coached (69), and most playoff game wins (36). Ramsay is the only coach to win an NBA championship with the Trail Blazers, in the 1977 NBA Finals. Ramsay and Lenny Wilkens are the only Trail Blazers coaches to be elected into the Basketball Hall of Fame, and were both named one of the top 10 coaches in NBA history. Mike Schuler and Mike Dunleavy have won the NBA Coach of the Year Award, in and respectively, with the Trail Blazers. Todd, Stu Inman, Jack McCloskey, Kevin Pritchard, and Kaleb Canales have spent their entire NBA coaching careers with the Trail Blazers. Canales was named interim coach of the Trail Blazers toward the end of the season. Terry Stotts was named as head coach on August 7, 2012. The announcement was made by General Manager Neil Olshey. At this time, his NBA coaching record was 115-168.
 Link Information: Terry Linn Stotts (born November 25, 1957) Answer: 55

Answer: How old was Terry Stotts the year that he was named head coach of the Trail Blazers?


Question: Passage: Cartwright served as the president of the Philosophy of Science Association (2009–10), as vice-president (2007–8) and president (2008–9) of the Pacific Division of the American Philosophical Association, and was elected to be President of the Division for Logic, Methodology and Philosophy of Science and Technology from 2020 to 2023. She is Professor Emeritus at the London School of Economics. She is also Fellow of the British Academy, a member of the American Academy of Arts and Sciences, a member of the German Academy of Sciences Leopoldina, and a Fellow of the Academy of Social Sciences. She has received honorary degrees from Southern Methodist University and the University of St Andrews as well as a MacArthur Fellowship. 
 Link Information: Past and future presidents.- Charles Singer (1947-1950) Answer: Charles Singer

Answer: Who was the first president of the organization Nancy Cartwright was elected to lead from 2020 to 2023?


Question: Passage: In addition to withdrawing from the prestigious long-haul routes to New York and Los Angeles after only 18 months, other specific measures the airline took at the time to ensure its survival included dropping all scheduled flights to Belfast, Copenhagen, Gibraltar, Ibiza, Málaga, Palma de Mallorca and Tunis, indefinitely suspending scheduled services on the Glasgow—Southampton route as well as cutting the number of frequencies on the Gatwick—Glasgow and Gatwick—Edinburgh routes from six to four daily round trips. Two surplus aircraft were leased out to Air Malta and Austrian Airlines respectively for the duration of the 1975 summer timetable period. Another aircraft was stationed at West Berlin's Tegel Airport during the month of July of that year to fulfill a short-term charter contract to carry Turkish migrant workers to and from Istanbul on behalf of a local tour operator. BCal also decided to increase its 707 freighter fleet from one to four aircraft and to acquire a five-seater Piper Aztec to serve the rapidly growing executive charter market. These changes left BCal with 25 operational aircraft for the 1975 summer season. To reduce operating costs further, the airline decided to contract out its scheduled operations between Gatwick and Le Touquet to BIA. The reason for replacing BCal's One-Eleven 200 jet aircraft on this route with that airline's Herald turboprops at the beginning of the 1975 summer timetable period was the high price of jet fuel, which had made BCal's own jet aircraft operations uneconomic.
 Link Information: none Answer: none

Answer:
What were jet fuel prices in 1975?