The main reason why the Spanish built the St. Augustine fort in Florida was "to protect their sea route to the Caribbean" since this was a crucial port for many engaged in trade within the Caribbean.
They needed to keep their slaves otherwise it would have put them in serious debt and they would need to do the work themselves which was a lot due to the south was the biggest cotton producer in the world but, the north didn't want them to have slaves.
The answer is D)The French suffered several defeats.
