One key difference between the critical acclaim received by Edgar Allan Poe and that received by Stephen King is that acknowledgement of Poe's skill came primarily after his death, while King has received numerous awards during his lifetime.
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
This passage is a change in pacing because after the text says "The king cobra instantly turned its head toward me and flared its hood. Was it about to strike?" it suddenly change the continuity of the action and refers to some characteristics of the cobra.
It could have been "foreshadowing" if the text would have continued the original narrative of the preparation for the attack, until describing the attack or not.
However, the text changed in pacing when it wrote: "The interesting thing about the king cobra is that it is the smartest snake on earth. It can see 330 feet, and its venom contains powerful neurotoxins. This new information about the cobra's characteristics changed the narrative.
In the story "the call of the wild", we can conclude that Buck's life in the santa clara valley is happy and easy.
I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
present because
past participle is have swam
and present participle is will swim