A.I. Explanation:

Option 1: "life of sea creatures at the bottom of the sea"

Explanation: While the text mentions sea creatures that live in darkness, it primarily contrasts their existence with human life rather than focusing solely on the creatures themselves. Thus, this option does not capture the main theme of the passage.

Option 2: "how changes in the seasons are perceived by the deep-sea creatures"

Explanation: The passage does not discuss seasons or how deep-sea creatures perceive them. Instead, it emphasizes the absence of seasons in their environment, making this option irrelevant to the main idea.

Option 3: "how wonderful our lives were and will be"

Explanation: Although the text expresses appreciation for human life, it does not focus on the past or future of human experiences. The main idea is about the contrast between human senses and the limitations of certain creatures, not a general statement about the wonder of life.

Option 4: "the superiority of human beings over some creatures in terms of senses"

Explanation: This option accurately reflects the main idea of the passage, which highlights the contrast between the sensory experiences of humans and the lack of senses in deep-sea creatures. The text illustrates how fortunate humans are to have sight, sound, and other senses, thus supporting the notion of human superiority in this context.