Directions: Four parts of the sentences given below have been underlined. Identify the part having an error. If no part has an error, mark (E).

A food (A) additive is (B) any chemical that food manufacturers (C) intently add to their (D) products. (E) No error

The error is in part (C) "intently." This word is being used incorrectly in context. "Intently" means with concentrated attention or focus, which doesn't make sense here. Food manufacturers don't add chemicals "with focused attention" - they add them deliberately or intentionally. The correct word should be "intentionally" (done on purpose) or "deliberately." The sentence should read "A food additive is any chemical that food manufacturers intentionally add to their products."