In the given figure, ABCD is a quadrilateral inscribed in a circle. Diagonals AC and BD are joined. If\[{{30}^{o}}\]and\[\angle BDC=45{}^\circ \]. Find \[{{60}^{o}}\].

• A.  \[{{75}^{o}}\]                    
• B.  \[\angle CAD={{50}^{o}}\]
• C.  \[\angle BED={{120}^{o}}\]             
• D.  \[\angle BCD\]