Why has the temperature of the Arctic Ocean changed during the last 40 years?(1 point)

Responses

More sunlight now reaches Earth than in the past.
More sunlight now reaches Earth than in the past.

Less snow falls in the Arctic now than 40 years ago.
Less snow falls in the Arctic now than 40 years ago.

Sea ice has produced more salt, causing the cold ocean water to sink.
Sea ice has produced more salt, causing the cold ocean water to sink.

Sea ice has melted, allowing more sunlight to hit the ocean.

Sea ice has melted, allowing more sunlight to hit the ocean.