Which countries adopted constitutions that honored the laws of Spain regarding grants of property?

The correct choice highlights Mexico and Texas as the countries that adopted constitutions incorporating Spanish laws regarding property grants. This is significant due to the historical context in which both Mexico and Texas were influenced by Spanish governance and legal traditions.

In the case of Mexico, following its independence from Spain, the new nation retained many aspects of Spanish law, particularly regarding land grants. The Mexican Constitution of 1824 included provisions that honored these existing Spanish laws concerning property rights.

Texas, which was originally a part of Mexico, also embraced these legal traditions. When Texas declared independence and later joined the United States, it still recognized the Spanish land grants made prior to its independence, as these grants were seen as legally binding and vital for property rights.

The other options involve regions that did not have the same legal framework influenced by Spanish rule concerning property. California, for instance, had its own unique legal evolution that was separate from that of Texas despite being part of Mexico. Louisiana has a distinct legal background derived from French civil law, and Florida, while influenced by Spanish laws during certain historical periods, does not directly relate to the context of honoring property grants in the same way as Mexico and Texas. Thus, the focus on Mexico and Texas in the correct choice reflects a clear acknowledgment