The correct option is A.
From the passage given above, it can be seen that the brothers were opposites right from their mother's womb. One is left handed while the second one is right handed, this probably make them to see matters from different angles. Thus, it is inevitable that the brother will always be in conflict.
Answer:
B, "is situated"
Explanation:
Process of elimination:
A: The Oval Office is in the White House today, so the sentence should not be in the past tense.
C: This is not grammatically correct. The sentence needs a verb of a tense of "to be" like "is" or "was".
D: This is not grammatically correct. The sentence needs a verb of a tense of "to be" like "is" or "was". Also, since the Oval Office is singular, the word would be situates instead of situate anyway.
What will your audience get out of reading the novel or short story you are advertising?