Respuesta :
B is true. The end of the Mexican regulations on the importation of slaves became when in 1835 the Texas Revolution began and therefore the declaration of the republic. That same year the new Texas constitution was ratified and it restored the status of slave to people of color.
Answer: B) the end of Mexican regulations on slave importation
Explanation: After the Republic of Texas won its independence from Mexico in 1836, the end of Mexican regulations on slave importation allowed Texas to grow into a slave-driven agricultural power in a short time. Its suitability for cotton plantations was already known by that time.