Answer:
D.to accept the US offer of annexation
Step-by-step explanation:
Texas was one of the states under the Mexican government that is primarily made up of slaves engaged in cotton production. Also people of Spanish descendant and Americans moved to the states in-order to populate it.
After its separation from Mexico, it applied to join the US as a member state but was rejected. Later, President Tyler sent a letter of annexation to Texas encouraging them to join US as an annex State.
On May 5, 1845, Texas President Jones called for a convention on July 4, 1845, to consider the annexation and a constitution which was later approved. Few months later, Mexican-American war broke out due to this annexation.