Lysozyme is an enzyme present in tears and saliva. Which statement relates only to the tertiary structure of lysozyme?
- AA section of the molecule consists of an $\alpha$-helix.
- BIt consists of a single polypeptide.
- CIt is $129$ amino acids long.
- DThe $35\text{th}$ and $52\text{nd}$ amino acids help form the active site.