Answer:
A. a license to use a single copy of the software.
Explanation:
B - he was one of the first sociologists to systematically apply the methods of science to the study of society
Answer:
A donation describes the immediate exchange of money or goods from a donor.
A pledge is the promised exchange of money or goods from a donor.
By combining old techniques with new, scientists can find out more quickly how things we are exposed to in our environment can result in sickness. Once we know where the dangers might be, we can reduce the number of diseases and deaths and help prevent people from being exposed to things that can harm them
