The correct answer is D, Compare and contrast.
In order to compare two or more things, you need to find those characteristics that are equal or similar between the things. On the other hand, to contrast two or more things you need to the things that are different in one and other, and there, you are contrasting things.
In other words, to contrast is the act that makes you find differences or unlikeness between things. Also, to compare is to analyze two or more things to find similarities.
