Arrange the following four levels of protein structures - Primary (I), Secondary (II), Tertiary (III), and Quaternary (IV) in a correct match:

I	First terminal $-\mathrm{C}$, Last terminal $-\mathrm{N}$	1 Polypeptide
II	Right-handed, Helical polypeptide	1 Polypeptide
III	Long-chain folded like a ball	2 Polypeptides
IV	Protein subunits present	More than one Polypeptides

The correct sequence of amino acids present in the tripeptide given below is:

Given below are two statements:

Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal).

Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of $\alpha$ type and two subunits of $\beta$ type).

In the light of the above statements, choose the correct answer from the options given below: