The study of socioeconomic indicators associated with a country are extremely useful considerations in the context of international marketing. As an example, a firm is attempting to measure how much money citizens of a particular country have to purchase items that they may not need but want. Specifically, what are we referring to in this case? A. In this case, we are referring to discretionary income as a socioeconomic measure. B. In this case, we are referring to disposable income as a socioeconomic measure. C. In this case, we are referring to the PALMA Index as a socioeconomic measure. D. In this case, we are referring to the concept of duplicated income as a socioeconomic measure