The last one should be your answer
Yes, because animal experimentation leads to many deaths, also you still don’t have a 100% true idea of what the product is going to do to humans.
Guinea pigs are the main meat source
You didn't really provide us with any document? However, generally it can be said that the Roman empire was in a decline due to a series of bad rulers which were unable to keep the massive empire at the time together and maintain law, order, and at the same time keep up with the military advances of other barbarian tribes.
