The correct answer is - Oregon.
From the choices provided, Oregon is the one that has the most moderate climate. The summers in Oregon are moderate and relatively wet, especially in the western part of the state. The winters too are moderate and wet. The temperatures in both the summer and the winter are not going in extremes, and the reason for that is the oceanic influence on the climate of Oregon. Because the water has a big influence, and the thermal properties of the water means that it cools down and heats up much slower than the land, it manages to make the climate moderate, without any extremes.