In the given figure, AB is a diameter of a circle with centre O. If\[{{72}^{o}}\], find\[{{54}^{o}}\].

• A.  \[{{27}^{o}}\]                    
• B.  \[{{90}^{o}}\]
• C.  \[\angle BOD={{120}^{o}}\]                                
• D.  \[\angle ACD\]