Consider the following variables: (1) Political preferences (Republican, Democrat and Independent) (II) Language ability (Beginner, Intermediate and Fluent) (III) Number of pets owned These three variables are, respectively: O a. categorical and nominal, categorical and ordinal, categorical and nominal. O b. categorical and nominal, categorical and nominal, categorical and ordinal. C. categorical and ordinal, categorical and ordinal, categorical and nominal. O d. categorical and nominal, categorical and ordinal, quantitative and discrete. O e. categorical and ordinal, categorical and nominal, quantitative and continuous