Answer: the effect of the domino theory.
Explanation:
A domino effect or chain reaction is the cumulative effect produced when one event sets off a chain of similar events. The term is best known as a mechanical effect and is used as an analogy to a falling row of dominoes.
I would say either B or D but I think the better answer would be D.
<span>We can answer this question with a great example, the Civil Rights Act of 1964. This important and monumental act had a direct impact on reducing racial restrictions by giving people of color access to public facilities, expanding the voting laws, and reducing funding for discriminatory programs.</span>
The decline of Buddhism has been attributed to various factors, especially the regionalisation of India after the end of the Gupta Empire (320–650 CE), which led to the loss of patronage and donations as Indian dynasties turned to the services of Hindu Brahmins.
Historians use past events and artifacts much as a lawyer uses past details, events, and dna to tie the person to the crime or to help the person they are defending.