Graphical representation of data can be done by

Histogram only
Ogive only
Frequency polygon only
All of the above

The correct answer is (d), all of the above.

A histogram is a graphical representation of the distribution of data. It is an estimate of the probability distribution of a continuous variable (quantitative variable) and was first introduced by Karl Pearson.

An ogive is a cumulative frequency curve, and is a graphical representation of the cumulative distribution function of a variable. It is a type of line graph that cumulatively plots the probability that a variable will be less than a certain value.

A frequency polygon is a graphical representation of a frequency distribution in the form of a polygon. It is constructed by joining the midpoints of the tops of the rectangles in a histogram.

All three of these graphical representations can be used to represent data.