A meteorologist used the expression below to describe how the temperature changed.

Negative 5 + (negative 4)

Which statement could describe how the temperature changed?
The temperature was –5 degrees, then it increased 4 degrees.
The temperature was –5 degrees, then it decreased 4 degrees.
The temperature was 5 degrees, then it increased 4 degrees.
The temperature was 5 degrees, then it decreased 4 degrees.