Correct answer: A. Raigad
Explanation: The direct answer is A: Raigad. Chhatrapati Shivaji’s coronation took place at Raigad, also called Raigad Fort, in 1674. The event formally gave him the title and status of Chhatrapati and symbolised the establishment of an independent Maratha state. The reasoning is: identify the event as Shivaji’s coronation; connect the coronation with the fort that served as an important capital and power centre; that fort was Raigad. Option A is correct. Option B, Purandar, is wrong because Purandar is associated with an important fort and treaty in Maratha history, but it was not the place of Shivaji’s coronation. Option C, Satara, is wrong for this event; it later became an important Maratha centre, but the coronation was at Raigad. Option D, Panhala, is wrong because it was another major fort connected with Maratha military history, not the coronation venue. A helpful memory trick is “राज्याभिषेक—रायगढ़”: the similar “रा” sound can help recall the pair. Always distinguish a historical power centre or fort from the specific place of coronation.