Which of the following scenarios is an example of a monopoly?
O
A. Only one company offers bus service to a major city.
B. Customers can choose among a limited number of Internet
providers.
O
c. A new pizza shop promotes its new shrimp scampi pizza.
D. The price of gold rises due to an increase in consumer demand.

I believe it is A

Explanation:

Since only one company provides the service in a major city, than they have control over the supply and trade in that service because they don’t share that service with any other company.

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'm gonna go with d.

hope this !