(c) The requirement is to identify the quantitative technique
to developing a sales forecast. Answer (c) is correct because
the moving average technique uses the average of sales for
the most recent periods to predict next period’s sales. Answer (a)
is incorrect because the Delphi technique is simply a structured
approach to developing a subjective estimate from a group of
people. Answers (b) and (d) are incorrect because they involve
qualitative approaches to developing a sales forecast.