which of the following alternative explanations of the change in the cash value of children would be most likely to be put forward by sociological economists as they are described in the passage
A.The cash value of children rose during the nineteenth century because paraents began to increase their emotional investment in the upbringing of their children.
B.The cash value of children rose during the nineteenth century because their expected earning over the courseof a lifetime increased greatly.
C.The cash value of children rose during the nineteenth century because the spread of humantiarian ideals resultedin a wholeasale reappraisal of the worthof an individual.
D.The cash value of children rose during the nineteenth century because compulsory education laws reduced the supply, and thus raised thd costs, of available child labor.