**Category:** Organic Chemistry  
**Subtype:** Nomenclature  
**Problem Description:** Identify the correct IUPAC name for the compound \(\mathrm{CH}_{3}-\mathrm{NH}-\mathrm{CH}_{3}\).  

**Options:**  
A. Methyl amine  
B. N-methylmethanamine  
C. Ethyl amine  
D. Dimethyl amine