Which of the following statements is FALSE? O There may be reasons to exclude certain historical data as anomalous when estimating beta. O Many practitioners use adjusted betas, which are calculated by averaging the estimated beta with 1.0 O If we use very old data to when estimating beta, they data may be unrepresentative of the current market risk of the security. 0 The beta estimated we obtain from linear regression can be very sensitive to outliers, which are returns of unusually small magnitude