Which result is an advantage in trade

Here are several things that would result in an advantage in trade:
- Advanced technology that could be used for production
- Large population of people with high-level skill
- Lower tax rate imposed and fewer regulation
- Little or no competition for the trade
- Government incentive that was given in order to gain advantages among other competitors

Ithink it's c selection but i don't really know. 

The haitian revolution was the result of a long struggle on the part of the slaves in the french colony of st. domingue, but was also propelled by the free mulattoes who had long faced the trials of being denoted as semi-citizens. this revolt was not unique, as there were several rebellions of its kind against the institution of plantation slavery in the caribbean, but the haitian revolution the most successful. this had a great deal to do with the influence of the french revolution, as it to inspire events in haiti. the haitian revolution would go on to serve as a model for those affected by slavery throughout the world.