Concept: The mode is the value that occurs most frequently in a distribution.Explanation:From the table, the frequencies are recorded for each distinct value.Value 0 appears 1 time.Value 1 appears 2 times.Value 2 appears 2 times.Value 3 appears 1 time.Value 4 appears 9 times.The highest frequency is 9, which belongs to the value 4.Hence, the most frequent value in the distribution is 4.This means the mode of the given distribution is 4.Answer:4Correct option: D. 4