Answer:
The author decided to focus on Victor Frankeisntein to tell this story.
Step-by-step explanation:
"Frankenstein" was written by Mary Shelley and tells the story of scientist Victor Frankenstein who was obsessed with creating life from dead material. Frankenstein manages to create a creature, which despite having the same physical shapes as a human being is a horrendous creature, rejected by Victor and the whole society, due to appearance.
The text shown in the question above, is an excerpt taken from "Frankenstein" where Victor Frankenstein tells the moment when he saw the destructive power that lightning possesses. This energetic power of the lightning bolt and the great impact it can have was what showed Victor the energy he needed to use to bring his creature to life. For this reason, we can consider that the author decided to tell this story by focusing on Frankenstein.