In each of the questions given below, a sentence is given with four words highlighted. These four words may or may not be in their correct position. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of the words that replace each other.

Our sights (A) from the plane are unalike (B) because our distinct seating assignments (C) trigger (D) a parallax.

Her tendency (A) to procrastinate (B) often led to last-minute rushes to complete assignments, despite her awareness (C) of the importance (D) of time management.

In his relentless conducting (A) of knowledge, the scientist spent years pursuit (B) understanding (C) research that pushed the boundaries of human groundbreaking (D).

In the face of burning (A) odds and danger, the firefighter's heroic (B) actions saved (C) an entire family from a/an overwhelming (D) building.

The termination (A)of the employee's contract (B) was a result of violations (C) consistent (D) of company policies.