Notification letter of lottery work

Neither is suitable, is it? Item A, it seems that the word "flattered" cannot be used. . . In item B, it is not correct to say "good at talking", and it is also impolite to say "less talking".

Also, what does the big question above mean? What school youth league Committee issued a notice saying: "Please monitor each class at 4: 30 pm on the 20th to participate in the drawing of the singing contest on time, and you must not be absent." ? This sentence is ok, there is nothing particularly wrong with it. But I'm not very good at getting to the bottom of it. . . )