Step 1: Understanding the Concept:
The question asks to identify a specific traditional Indian dairy dessert based on a description of its composition and texture. The key features are: concentrated, sweetened, and contains layers of clotted cream (malai).
Step 2: Detailed Explanation:
(A) Paneer: An unsweetened, acid-coagulated fresh cheese. It does not contain layers of cream.
(B) Rabri: This is the correct answer. Rabri is made by simmering whole milk on low heat for a long period to concentrate it. As the milk heats, a layer of cream (malai) forms on the surface. This layer is skimmed off and set aside. The process is repeated until the milk is significantly reduced. Finally, the reduced milk is sweetened and the collected layers of cream are added back, giving it a characteristic layered, lumpy texture.
(C) Channa: The unsweetened, acid-coagulated milk solid base used for Bengali sweets.
(D) Gulabjamun: Deep-fried balls of Khoa soaked in sugar syrup.
Step 3: Final Answer:
The product that matches the description of a concentrated, sweetened milk with layers of clotted cream is Rabri.