Since home childcare is not calculated within the GDP, wouldn't C be the correct analysis? A seems to have some viability, but since there is no valuation on the care itself (i.e. services), products such as diapers would already, and continue to be counted. Correct?

Over the last few decades, Americans have become more likely to use daycare for their young children rather than to keep them at home. This change in behavior, by itself, has:

A. increased measured GDP to the extent that the value of the daycare exceeded the cost of the purchased supplies used to care for children at home.

B. reduced measured GDP.

C. increased measured GDP by the full value of the daycare.

D. increased measured GDP only to the extent that the value of the daycare exceeded the value of child home care.

E. not affected measured GDP.