Concept:The median is a measure of central tendency that represents the middle value of a dataset when ordered.Explanation:The median corresponds exactly to the 50th percentile, as it divides the data into two equal halves.The first quartile (Q1) is the 25th percentile, not the median.The sixth decile (D6) is the 60th percentile, not the median.Thus, only option B correctly identifies the median.Answer:B. 50th percentile