One Can Deal with Missing Data by

One can deal with missing data by

A) making up values for missing data.
B) creating a dummy variable for observations with non-missing values,setting the missing value equal to 1,and including the dummy variable in the regression analysis.
C) creating a dummy variable for observations with missing values,setting the missing values equal to 0,and including the dummy variable in the regression analysis.
D) creating a dummy variable for observations with missing values,setting the missing value equal to 1,and including the dummy variable in the regression analysis.