The correct option is A Bar Graph
When the ungrouped data comprises of quantities that don't involve grouping of data into classes of numbers, a bar graph is used to represent such data. e.g., months in which students were born, fruits that people like, cities that people come from, etc.
Thus, typically ungrouped data is represented by a bar graph. Such a variable is represented on X-axis and its corresponding frequency is represented on the Y-axis.