Consider the following regression model: Humidity = Bo + 1Temperature + 82Spring + 83Summer + B4Fall + 85Rain + 8, where the dummy variables Spring, Summer, and Fall represent the categorical variable Season (spring, summer, fall, winter), and the dummy variable Rain is defined as Rain = 1 if rainy day, Rain = 0 otherwise. What is the regression equation for the summer days? Multiple Choice O Humidity = bo + bj Temperature + bRain O Humidity = (bo + b3) + bjTemperature + bRain O Humidity = bo + bj Temperature + bySpring + bRain O Humidity = bo + bj Temperature + bySpring + byFall + bRain