A financial analyst constructs a statistical model to represent the market shares of several similar companies She then collects data over the next month to evaluate her model At the end of the month she finds that for one of the companies the difference between her model and the data is 5 She decides to collect data for an additional two months If her model is valid what could she expect from the total data collected after three months OA The difference between the data and the model will get smaller OB The difference between the data and the model will get larger OC The difference between the data and the model will stay the same O D It is impossible to predict how the difference between the data and the model change