PTE Reading MC Single Answer
Read the passage and answer the question by selecting the correct response from the options below.
Researchers suggest that there are creatures that do not know what light means at the bottom of the sea. They don’t have either eyes or ears; they can only feel. There is no day or night for them. There are no winters, no summers, no sun, no moon, and no stars. It is as if a child spent its life in darkness in bed, with nothing to see or hear. How different our own lives are! Sight shows us the ground beneath our feet and the heavens above us – the sun, moon, and stars, shooting stars, lightning, and the sunset. It shows us day and night. We are able to hear voices, the sound of the sea, and music. We feel we taste, we smell. How fortunate we are!
Judging from the passage, we can say that this story is mainly about?