उस युग्म की पहचान कीजिए जो खाद्य परिरक्षक (food preservative) नहीं है:

Why is benzoic acid preferred for preserving darker or colored fruit products rather than delicate, light-colored products?

Read the statements given below and choose the correct option. Assertion (A): Salts, edible oils, vinegar, and sugar are common food preservatives. Reason (R): These substances enhance the flavor of food and prevent microbial growth by increasing osmotic pressure or acidity.