Correct option is C
Correct answer: C
Correct sentence
By the time the news crew arrived, the storm had already reached its peak intensity.
Explanation
The sentence describes two past actions:
· the storm reaching peak intensity (earlier action)
· the news crew arriving (later action)
For the earlier past action, we use past perfect tense:
· Incorrect: “storm already reached”
· Correct: “storm had already reached”
Error analysis
Part A: Correct – “By the time the news” is fine.
Part B: Correct – “crew arrived” is proper.
Part C: Incorrect – should be “had already reached” instead of “already reached”.
Part D: Correct – “its peak intensity” is fine.
Conclusion
Error is in Part C due to incorrect tense usage.