I believe that your answer is #4, it seems to be the only logical one. :)
The house in the middle because it's the closest to an inclined terrain.
The correct answer should be C. bio-luminescence
They have this ability because the parts that are shiny are meant to be like bait for other animals and when they come near to eat it or check it out they get eaten by the entire fish which is much larger than its bioluminescent part.
Answer:
Increased ocean temperatures are melting glaciers and ice caps all over the world. Melted ice increases the volume of water in our oceans. Warmer temperatures also result in the expansion of the water's mass, which causes sea levels to rise, threatening low-lying islands and coastal cities.
