Given below are two statements:

$$\textbf{Statement I :}$$ The number of pairs among $$[\text{Al}_2\text{O}_3, \text{Cr}_2\text{O}_3]$$, $$[\text{Cl}_2\text{O}_7, \text{Mn}_2\text{O}_7]$$, $$[\text{Na}_2\text{O}, \text{V}_2\text{O}_3]$$ and $$[\text{CO}, \text{N}_2\text{O}]$$ that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4.

$$\textbf{Statement II :}$$ Among $$\text{Na}_2\text{O}$$, $$\text{Al}_2\text{O}_3$$, $$\text{CO}$$ and $$\text{Cl}_2\text{O}_7$$, the most basic and acidic oxides are $$\text{Na}_2\text{O}$$ and $$\text{Cl}_2\text{O}_7$$, respectively.

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