Step 1: Understanding the Concept
The name phenyl methanamine means methanamine (\(\text{CH}_{3}\text{NH}_{2}\)) in which one hydrogen on carbon is replaced by a phenyl group.
Step 2: Build the Structure
The carbon of methanamine is bonded to the phenyl ring, so the structure is \(\text{C}_{6}\text{H}_{5}-\text{CH}_{2}-\text{NH}_{2}\).
Step 3: Compare the options
Option (C) shows a benzene ring joined to \(\text{CH}_{2}\) and then \(\text{NH}_{2}\), which is benzylamine.
Option (A) is N-methylaniline, (B) is a methyl substituted aniline and (D) is diphenylamine.
Final Answer:
Phenyl methanamine is benzylamine, shown in option (C).
\[ \boxed{\text{(C) }\text{C}_{6}\text{H}_{5}\text{CH}_{2}\text{NH}_{2}\ \text{(benzylamine)}} \]