Neco Model Questions Vol1 2022 Geography Question 6

Three regions are being evaluated for a new agricultural project. The suitability index \(S\) for a region is calculated as follows: start with 100 points, add 0.1 point for each millimetre of annual rainfall above 800 mm, subtract 2 points for each degree Celsius the average temperature deviates from the optimum 25 °C, add 10 points for each unit of soil‑fertility rating (scale 1-5), and finally subtract 0.5 point for each kilometre of distance to the nearest major market. The data are: - Region A: rainfall 950 mm, average temperature 27 °C, soil‑fertility rating 3, distance to market 120 km. - Region B: rainfall 1300 mm, average temperature 23 °C, soil‑fertility rating 4, distance to market 200 km. - Region C: rainfall 1100 mm, average temperature 25 °C, soil‑fertility rating 2, distance to market 80 km. Which region has the highest suitability index and should be selected for the project?