1)
\The set of data 
Find the mode value.
\
Option A is right choice.
\2)
\Find the median value.
\
Option B is right choice.
\3)
\The set of data 
Find the mode value.
\This data set as no mode.
\Option D is right choice.
\5)
\The set of data 
Find the mode value.
\
Option C is right choice.