Answer:
impactful, impressive. real, sad and unimaginable
Metaphor
pointed wall of words is being compared
The correct alternative is letter B. Brown v. Board of Education of Topeka, in 1954, was a very well known case judged by the Supreme Court of the United States which has decided to be unconstitutional all racial segregation in public schools in the United States. This decision has overturned a previous decision of 1986, in the Plessy v. Ferguson which had validated racial segregation in public areas in the US, such as schools, hospitals and bus and train stations.
Another exception to Mendel’s rules is polygenic inheritance, which occurs when a trait is controlled by more than one gene. This means that each dominant allele "adds" to the expression of the next dominant allele.
Usually, traits are polygenic when there is wide variation in the trait. For example, humans can be many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall.