Answer:
To experience nature at its fullest requires mental effort.
The best answer between the choices would be the third one. The implications of the case was important because it argued whether or not the separation of public schools between the black people and the white were constitutional or not. Hope my answers have come to your help.
Answer: A. his attitudes towards animals and what it feels like to be the hunted
Explanation:
At the climax of "The Most Dangerous Game", by Richard Connell, Sanger Rainsford has an epiphany about his attitudes towards animals and what it feels like to be the hunted. Sanger Rainford is a hunter, however now is himself who is being chased by the hounds. At this moment, he can experience the feelings that the animals feel when he hunts them.
The answer is D.
"Keep", "factor", and "calculate" are all verbs in the list of things the new system allows teachers to do. The other sentences are inconsistent with their list of verbs/adjectives/nouns. Thus, option D is the only one that is grammatically correct.
I am not too good at explaining, so let me know if you are still confused.
Hope this helps! :)