Which element of franz kafka's the metamorphosis makes it an absurdist story?

The absence of a reason for Gregor's transformation into an insect

Explanation:

The book "The Metarmofosis" tells the story of Gregor Samsa - a traveling salesman who turns into a disgusting insect. The narrative already begins with the transformation of the character, leaving all the context for later. From this, the story is told with an unexpected realism that associates the improbable and the sense of humor with everything that is grotesque, tragic and cruel in the human condition.

What makes this book an absurd story is the absence of a reason for Gregor's transformation into an insect. Franz Kafka leaves different evidences for the reader through own reasoning to conclude what took Samsa to turns into an insect.

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