Concept:Translate the given language of inequalities into a double inequality.Explanation:The distance is “more than 18 KM”, so d is strictly greater than 18.This gives d>18, which is the same as 18<d.The distance is “not more than 23 KM”, so d is less than or equal to 23.This gives d≤23.Combine these conditions to get:18<d≤23This is represented by option D.Answer:D. 18<d≤23