Identify the incorrect statement about tertiary structure of proteins.

$$ \text { Given below are two statements : } $$

$$ \text { Statement I : } $$ and are two anomers of D-(+)-glucode.

Statement II : The open chain forms of D-glucose and D- fructose contain three similar chiral carbons at $\mathrm{C}_3, \mathrm{C}_4$ and $\mathrm{C}_5$.

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

Identify the correct statements.

A. Glucose exists in two anomeric forms.

B. Anomers of glucose differ in configuration at $\mathrm{C}-1$ in cyclic hemiacetal structure.

C. Melting point of $\alpha$ - anomer of glucose is greater than $\beta$ - anomer.

D. Specific rotation of $\alpha$ - anomer is $+19^{\circ}$ while for $\beta$ - anomer is $+112^{\circ}$

E. $\alpha$ and $\beta$ - anomers of glucose are prepared by crystallization of saturated glucose solution at 303 K and 371 K respectively.

Choose the correct answer from the options given below :

A D-aldotetrose on oxidation with concentrated $\mathrm{HNO}_3$ resulted in optically inactive dicarboxylic acid. The structure of the D-aldotetrose is :