Option 1 -> Places Tughlaq before Khilji, which is historically incorrect.
Option 2 -> Correctly sequences: Khilji (1290-1320) → Tughlaq (1320-1414) → Sayyid (1414-1451) → Lodi (1451-1526).
Option 3 -> Places Tughlaq before Khilji and Lodi before Sayyid, both chronologically incorrect.
Option 4 -> Places Lodi before Sayyid, which reverses the actual succession order.
Hence, Option 2: (C), (D), (A), (B) -> The Delhi Sultanate saw these four dynasties rule in succession during the medieval period, with the Khilji Dynasty beginning in 1290, followed by the Tughlaqs in 1320, then the Sayyids in 1414, and finally the Lodis in 1451 until the Sultanate ended in 1526 -> correct