Step 1: Recall definition.
Antioxidants are substances that inhibit oxidation and protect the body from free radicals.
Step 2: Check options.
- (A) Lecithin: Acts as an antioxidant and emulsifier.
- (B) Citric acid: Works as a preservative and antioxidant.
- (C) Vitamin E: A natural antioxidant protecting cell membranes.
Step 3: Conclusion.
All the given compounds are antioxidants. Correct answer: All of these.