In the adjoining figure, it is given that D and E are the mid-points of AB and AC, respectively If \[\frac{4}{6}=\frac{8}{EA}\], \[\Rightarrow \]then \[EA=12cm.\]____

• A.  \[\Delta ABC\]            
• B.  \[{{15}^{o}}\]
• C.  \[{{30}^{o}}\]                                
• D.  \[{{45}^{o}}\]