Concept:The sentence has two words placed incorrectly; interchanging the first and the last word makes it grammatically and contextually correct.
Explanation:The original sentence is: "The breaking-news had taken place in the penthouse of the 5-star hotel and immediately became murder."
'Breaking-news' means recent important information, so it cannot 'take place' at a location.
'Murder' is an event that can occur in a place, but it cannot become news by itself.
The phrase 'had taken place' correctly matches with 'murder', giving "The murder had taken place..."
The phrase 'became breaking-news' means the incident became widely reported news.
Hence, swapping the words in positions A and D corrects the sentence.
Answer:Option 4 (D-A).
Correct sentence: "The murder had taken place in the penthouse of the 5-star hotel and immediately became breaking-news."