to reduce the amount of work for all involved to reduce the cost of conducting experiments on people to obtain results quickly in a short period of time to perform experiments that would be irresponsible using human subjects
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Scientists often use mathematical models and computer simulations to study systems. What is the main advantage of using these techniques for studying the spread of infectious diseases?
Possibilities:
- to reduce the amount of work for all involved
- to reduce the cost of conducting experiments on people
- to obtain results quickly in a short period of time
- to perform experiments that would be irresponsible using human subjects

to perform experiments that would be irresponsible using human subjects