5.
如图,AB是⊙O的直径,CD是⊙O的弦,AB⊥CD于点E,则下列选项中的弧属于优弧的是( )
0 309739 309747 309753 309757 309763 309765 309769 309775 309777 309783 309789 309793 309795 309799 309805 309807 309813 309817 309819 309823 309825 309829 309831 309833 309834 309835 309837 309838 309839 309841 309843 309847 309849 309853 309855 309859 309865 309867 309873 309877 309879 309883 309889 309895 309897 309903 309907 309909 309915 309919 309925 309933 366461
| A. | $\widehat{AC}$ | B. | $\widehat{AD}$ | C. | $\widehat{ACD}$ | D. | $\widehat{ADB}$ |