The answer is B: It helps us to see the different views expressed in literature.
Comparing literature is actually a practice which is part of a whole field of study called “comparative literature” which is a kind of study that focuses on textual expressions trying to grasp their meaning from the inside, that is to say, as they relate to broader spheres of human activity, such as politics, economics, history, philosophy, art, and even science. As such, this field of study is productive in the sense that it can go beyond the use of language and immerse itself in diverse cultural, historical, and social contexts, all of which are different views that literature conjoins but need to be interpreted and analyzed.