Which of the Following Is NOT a Frequent Reason for the Use

Which of the following is NOT a frequent reason for the use of composite measures in research?

A) the researcher is seldom able to develop in advance single indicators of complex concepts.
B) a single data item might not have enough categories to provide a range of variation.
C) composite measures give a more comprehensive and accurate indication of a given variable.
D) they are efficient data reduction devices.
E) they simplify interpretation for both the researcher and the reader.