Directions: The undergiven sentence has been divided into three parts (A), (B) and (C). One of these parts may contain an error. You have to mark that part. If there is no error, mark (D).

The company's returns (A) have increased (B) with expand of production unit. (C) No error (D)

The error is in (C) 'with expand of production unit'. The word 'expand' is a verb, but this position requires a noun. The correct form should be 'with expansion of production unit' or 'with the expansion of the production unit'. Using the verb form 'expand' instead of the noun 'expansion' is grammatically incorrect. The phrase 'with expand' cannot function as a proper prepositional phrase in this sentence structure.