Biology

The best answer is A.by melting glaciers and ice caps.

Here's why:

A.Melting glaciers and ice caps: One of the main ways global warming causes sea levels to rise is by causing the melting of glaciers and ice sheets (especially in Greenland and Antarctica) that are currently storing vast amounts of water in the form of ice. When these ice masses melt due to higher global temperatures, the water flows into the ocean, contributing to a rise in sea levels.

The other options are less directly related to sea level rise:

B.By causing it to rain more often: While increased rainfall can contribute to local flooding, it does not significantly raise global sea levels because the water that falls as rain eventually returns to the oce...