Sl<span>ave rebellions and the fear of slave revolts consumed the attention of white colonists in the south and the north in the 1730s and the 1740s because the ratio of slaves to whites was often very high--meaning that the only thing keeping such revolts from taking place more often was fear and violent intimidation. </span>
The correct answer is - hospitals.
The infrastructure of a country is a set of built objects where services are offered, and people work, or are using them in their daily lives for their activities. In the infrastructure of a country also fall the schools, colleges, and universities, roads, airports, administration buildings, factories etc. They all have someone that works in them, something that offer, and are used, to and by the general public, and the more developed the infrastructure is, it usually means that the more developed the country itself is as well.
The first one is probably correct
