In the figure BD = DC and\[{{50}^{o}}\]. The value of \[{{85}^{o}}\]is:

• A.  \[{{120}^{o}}\]                  
• B.  \[{{360}^{o}}\]
• C.  \[{{90}^{o}}\]                    
• D.  \[{{90}^{o}}\]