Answer: c. All of these are evidence supporting the benefits of space travel
Explanation:
Benefits to humans are those things which ensure that humans can live easier and longer with better health.
Space travel improving medicine is a benefit because it means that humans get to live in better health.
Another benefit is the improvement in communication. Communication has played a very vital role in unifying countries and improving business and personal relations so improvements in communication is a plus.
New inventions will also benefit humanity so option B is a benefit as well.
