The correct answer to your question is A, the early nineteenth century. people previous this time learned that they need to clean wounds and that it is extremely painful to do surgery to those who are awake, but they didn't have the tools or the technology to develop things that would do this. it wasn't until the early nineteenth century that many crucial elements to the medical field, such as antiseptic and anesthesia, were developed. let me know if you have any further questions :)
It takes resources when there are more animals it takes more food then when you run out of food you will have to buy more which you will run out of money its all about money without money animals will starve.
