In Kafka's story, Gregor was at his job for fifteen years out being ill. However, in the graphic novel, "Gregor had
been ill even once in the last five years on the job.” Why might Kuper have chosen to shorten the length of Gregor's emnloyment?

If you mean unemployment,

When reading a graphic novel, people don't want to look at pictures of a person being sick the whole time. But when you are reading the book, it is less boring because you have a more vivid description.

Explanation:

This is if you mean unemployment

the following what exactly?