Final answer:
The Democrats in their 1840 platform did not support any of the options mentioned in the question.
Step-by-step explanation:
The Democrats in their 1840 platform did not support any of the options mentioned in the question. The platforms during that time focused more on economic issues such as banking, tariffs, and infrastructure development. The topics mentioned in the question, such as the events of the Alamo and Santa Anna's actions, were not part of the Democrats' platform during that period.