Answer:
C. overstate changes in the cost of living because the weight assigned to energy is too small
Explanation:
the weight in this index uses less energy efficient houses as the construction cost were higher
and relies more on energy which was cheaper at the time.
Because of this, now the index will overstate the changes in the cost of living.
The weight assigned to energy changed and people shift to more energy efficient houses to save in his energy bill's. The consumers will always shift their consumption to avoid unnecessary spending. In this case, construct more energy efficient houses and sasve on the billing
