Which of the Following Is Not a Reason Why a Mechanical

Which of the following is not a reason why a mechanical combination of data yield better results than a judgmental combination?

A) The accuracy of prediction may depend on the proper weighting of predictors.
B) Data on additional applicants are added to already available data, so more accurate statistical models can be created.
C) Decision makers relying on judgment can do better than a statistical model only if they are thorough, objective, and systematic in both collecting and combining the information.
D) Decision makers are more likely to add considerable error if they are allowed to combine judgmentally both subjective data along with objective data.