Read the passage below:
"The submersible, Alvin, sank through the twilight zone, its exterior headlights casting a dim cone of light into the abyss. To the crew monitoring the descent from the surface ship, the vessel was merely a blinking green icon on a telemetry screen. But inside the cramped steel sphere, Dr. Aris felt the walls pressing inward, his own breath loud and ragged against the hum of the oxygen scrubbers. *Why did I agree to this depth?* he wondered, staring at the empty black water beyond the quartz viewport. For decades, marine biologists had assumed that the abyssal plains were barren deserts, devoid of life and energy. They wrote textbooks detailing a static, silent world. Yet, as the submersible touched the seafloor, a sudden burst of bioluminescence erupted from the silt—a shimmering field of glass sponges that defied every established theory of deep-sea ecology."
Based on the passage, arrange the following narrative perspectives in the order in which they appear, from first to last.
- 1A detached, external perspective focused on the surface crew monitoring the vessel's telemetry data.
- 2An intimate, internal perspective capturing the direct thoughts and physical anxiety of a single researcher inside the vessel.
- 3A broad, historical perspective summarizing the collective, long-held assumptions of the marine biology community.
- 4An immediate, present-tense observational perspective focusing on the unexpected discovery on the seafloor.