Answer:
Option C, Increased sea levels
Step-by-step explanation:
As the planet gets warmer, the oceans also get warm. This is evident from the fact the sea level has risen from last few decades. The rise in sea level is due to the expansion of sea water which now require larger voluminous area as compared to the normal sea water. Thus , when hot sea water expands , it take more space as compared to its earlier form.
hence, option C is correct