A study showed a correlation between the number of umbrellas sold at a local store and the number of days of inside recess at the nearest school. Which lurking variable would explain the correlation between the number of umbrellas sold and the number of days of inside recess? A the size of the gym at the school OLO B. the amount of rainfall in the town C. the price of umbrellas at the store D. the number of people wearing rain Jackets E. the distance between the school and the store​