Neco 2022 Geography Question 18

Three potential sites are being evaluated for a new settlement. Their characteristics are: Site A: bearing capacity 150 kN/m², flood risk high, distance to market 8 km, distance to water source 2 km. Site B: bearing capacity 80 kN/m², flood risk low, distance to market 12 km, distance to water source 5 km. Site C: bearing capacity 120 kN/m², flood risk moderate, distance to market 6 km, distance to water source 3 km. A suitability score is calculated as \(Score = 0.4 \times BC_{s} + 0.3 \times FR_{s} + 0.2 \times MD_{s} + 0.1 \times WD_{s}\), where \(BC_{s} = \frac{Bearing\ Capacity}{150}\times 10\), \(FR_{s}\) is 1 for high, 2 for moderate, 3 for low flood risk, \(MD_{s} = \max(0, 10 - \text{distance to market})\), \(WD_{s} = \max(0, 5 - \text{distance to water source})\). Which site obtains the highest suitability score and is therefore the most appropriate for the settlement?