Three variables are collected in a biology experiment to create a multi-variable regression model: growth in outside plants (plantSize), amount of time that plants are exposed to sunlight ( sunTime), and the outdoor humidity of the air (airHumidity) to which the plants have been exposed. Which model has the most logical placement of independent and dependent variables for a study of plant growth using all three of these A. The independent variables are airHumidity and sunTime and the dependent variable is plantSize. B. The independent variables are airHumidity and plantSize and the dependent variable is sunTime. C. The independent variable is plantSize and the dependent variables are sunTime and airHumidity D. The independent variables are sunTime and airHumidity and the dependent variable is plantSize