Concept:In converting indirect to direct speech, modal verbs and conditional tenses (like "could have been") remain unchanged when they express a past hypothetical situation. The reporting verb "stated" stays the same, and the direct speech is enclosed in quotation marks.
Explanation:The original sentence in indirect speech is: "The analyst stated that inflation could have been controlled if monetary policies had been revised earlier."
Notice that "could have been controlled" and "had been revised" both refer to an unreal past condition. In direct speech, these tenses must be kept exactly as they are.
The reporting verb "stated" is already in the past tense, so it remains "stated" in the direct version.
Add quotation marks around the spoken words, start with a capital letter, and end with a period inside the quotes.
Thus the correct direct speech is: The analyst stated, "Inflation could have been controlled if monetary policies had been revised earlier."
Option 2 changes "could have been" to "could be", making it a present possibility instead of a past hypothetical. Option 3 changes to "had been controlled", which incorrectly suggests a completed action. Option 4 uses "can", which also shifts to present possibility. Only option 1 preserves the original hypothetical meaning.
Answer:Option A (1) is correct.