Which of these is not a critique of attempts to measure relative deprivation ?

A. the personal experience of poverty is not the concern of sociologists
B. there is an arbitrary nature to how items are selected for a deprivation index
C. it may be choice not poverty that means some people do not qualify for some of the items on a deprivation index
D. the subjective nature of such indices means it is difficult to make comparisons between different studies and time periods