Which is the example of branch isomerization

Options

A. `C-overset(C)overset(|)C-C-C-C" and " C-underset(C)underset(|)overset(C)overset(|)C-C-C`
B. `C-underset(C)underset(|)C-overset(C)overset(|)C" and " overset(C)overset(|)C-underset(C)underset(|)C-C`
C.
D. `C-C-C-C" and " C-C-underset(C)underset(|)C`

Answer

A

Explanation

As they are different parent chain.