Answer: c: they wanted all slaves to counts towards a state's population.
Step-by-step explanation:
When the Constitutional Convention was being held to decide the powers of the Federal Government, Southern delegates wanted enslaved people to be counted as part of the population as it would give their states more bargaining power at the federal level.
They did not however want the enslaved people to be free or have the right to vote, conditions which were objected to by their northern counterparts who then argued that the enslaved people would not be American.