Final answer:
The Continental Congress did not call for the abolition of the slave trade during its meetings. The Three-Fifths Compromise during the Constitutional Convention in 1787 allowed 60 percent of enslaved individuals to be counted for representation and taxation purposes. Therefore, the correct option is D.
Step-by-step explanation:
The Continental Congress in question did not call for the complete abolition of the slave trade during any of its meetings in 1774 or 1775. It wasn't until later, as sentiments grew against the institution of slavery among some of the white colonists that legislative steps were taken towards abolition in individual states. Notably, the Constitutional Convention in 1787, which was long after the last meeting of the Continental Congress, resulted in some compromises regarding slavery. Among these, delegates reached an agreement known as the Three-Fifths Compromise, where 60 percent of a state's enslaved population would count for purposes of both representation and taxation (Option D).