The Green Revolution: decreased the use of pesticides in farming.
improved conditions for farm workers.
resulted in new hybrid plants.
reduced farm outputs.

decreased the use of pesticides in farming.

Explanation:

It is about research technology transfer initiatives occurring between 1950 and the late 1960s.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.

i would say your answer is a)

sorry if im wrong