Answer: The correct answer is: Because few people had ever seen it, the giant squid is one of the great seamonster mysteries of the deep.
Explanation:
The main idea of this article is that the giant squid is a mystery beacuse it lives in the deep sea and, for that reason, few people saw it. There's a sentence that summarizes this idea: "...it's hard to get an idea of how the squid lives because it typically cruises in the deepest depths of the ocean." The article provides some facts about it: what they eat, which animal eats them, its lenght. Still, this squid remains a mystery.
I believe the tone is kind of sad. The mood the author wanted to make was sadness. He wanted you to image him when he was younger. (i hope this helped)
