The deamination of `Ph_(2)C (OH) CH_(2) NH_(2)` with `NaNO_(2) - HCl` gives a product (P), which on oxidation gives benzonic acid only. Identify the product (P)
A. `Ph - CH_(2) - CH_(2) - Ph`
B. `Ph - overset(O)overset(||)(C) - CH_(2) - Ph`
C. `Ph - overset(O)overset(||)(C) - overset(O)overset(||)(C) - Ph`
D. `Ph - CH_(2) - NH - Ph`