## **Core Concept**
Glutathione is a tripeptide antioxidant produced in cells. It's composed of three amino acids and plays a crucial role in maintaining cellular redox balance and protecting against oxidative stress. The synthesis of glutathione involves the combination of these specific amino acids.

## **Why the Correct Answer is Right**
The correct composition of glutathione includes Glutamic acid, Cysteine, and Glycine. This tripeptide is crucial for its antioxidant properties, helping to neutralize free radicals and maintain the balance of cellular redox status. The sequence of these amino acids in glutathione is γ-Glu-Cys-Gly.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not accurately represent the composition of glutathione.
- **Option B:** This option is incorrect as it also does not correctly list the amino acids that make up glutathione.
- **Option D:** This option is incorrect because it inaccurately suggests a different composition for glutathione.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that glutathione is a critical antioxidant in cells, and its levels can decrease due to various factors, including aging, oxidative stress, and certain diseases. Supplementing with its precursors, like N-acetylcysteine (NAC), can help boost glutathione levels.

## **Correct Answer:** C. Glutamic acid, Cysteine, and Glycine