The correct answer is C. out of, into.
We came out of the room and jumped into the swimming pool.
The word “out” is used to indicate movement away from a place, while the word “into” is used to indicate movement into a place. In this case, we are moving from the room to the swimming pool, so we use the words “out of” and “into”.
The other options are incorrect because they do not accurately reflect the movement that is taking place. Option A, “out, in”, would be correct if we were moving from the swimming pool to the room. Option B, “out, into”, would be correct if we were moving from the room to a place that is inside the swimming pool, such as a diving board. Option D, “out of, in”, would be correct if we were moving from a place that is outside the room to the room.