In the Gap Sales Case at the end of Chapter One, it was suggested that we could use a "modified na$$ve forecasting method" to make a prediction. What "modification" was being suggested to the na$$ve model?

Multiple Choice

Employ a lag of four periods since the data was seasonal.

Employ a lag of three periods since the data was seasonal.

Use only the last year of data for estimation.

Remove two outliers from the original data.