The delegates to the Constitutional Convention in 1787 did not abolish slavery for several reasons, and none of the options presented in the question accurately captures the complexities of the situation.
1. Economic and Political Interests: Many delegates from Southern states were dependent on slavery for their economic prosperity, primarily in agriculture, and were reluctant to abolish it due to economic interests and concerns over representation in Congress.
2. Compromises: The Convention was marked by numerous compromises, such as the Three-Fifths Compromise, which addressed how enslaved individuals would be counted for purposes of representation and taxation.
3. Political Unity: The delegates were focused on creating a unified and stable government, and the issue of slavery was divisive. Avoiding direct confrontation on the issue helped maintain unity among the states.
Abolishing slavery was a complex and contentious matter that would take several decades and significant social and political changes to address in the United States.