Based on the fact that this relates to Texas, the most likely reason for the change is D. The relocation of businesses.
<h3>Why would businesses relocate to Texas?</h3>
The table is not included but based on the fact that the question is about Texas, business relocation is most likely the answer.
Texas has tax friendly policies and a lower cost of living which has led to many companies moving there. This has increased the economic power of Texas.