Given below are two statements :
Statement (I) : On hydrolysis, oligo peptides give rise to fewer number of $$\alpha$$-amino acids while proteins give rise to a large number of $$\beta$$-amino acids.
Statement (II) : Natural proteins are denatured by acids which convert the water soluble form of fibrous proteins to their water insoluble form.
In the light of the above statements, choose the most appropriate answer from the options given below :

Proteins and peptides are condensation polymers of $$\alpha$$-amino acids, that is, every constituent amino acid possesses its $$-NH_2$$ group on the carbon atom next to the carboxyl group (the $$\alpha$$-carbon).

Case 1: Checking Statement I
Oligopeptides contain only a few peptide (amide) linkages, so on complete hydrolysis they furnish only a small number of constituent amino acids. Full-sized proteins are very long chains, so their hydrolysis yields a large number of amino-acid units. However, in every case the amino acids obtained are $$\alpha$$-amino acids, never $$\beta$$-amino acids (where the $$-NH_2$$ group would be on the second carbon away from $$-COOH$$).
Hence the phrase “large number of $$\beta$$-amino acids” makes Statement I wrong.

Case 2: Checking Statement II
Acids, bases, heat, or heavy-metal ions can denature proteins. During denaturation a water-soluble globular protein loses its native three-dimensional shape and often precipitates as an insoluble fibrous mass. Fibrous proteins are themselves normally water insoluble. Therefore acid treatment converts the water-soluble form of a globular protein into an insoluble fibrous form, not “the water-soluble form of fibrous proteins”. Hence Statement II is also wrong.

Both statements are incorrect, so the correct choice is Option C.