Correct option is A
The correct answer is:
(a) eagerly
This word best fits the context of fans looking forward to the announcement of concert dates with excitement and enthusiasm.
Here are the meanings of the incorrect options:
(b)
reluctantly - Unwillingly or with hesitation.
(c)
timidly - In a shy or fearful manner.
(d)
hesitantly - With hesitation, uncertainty, or delay.
(e)
nervously - In a manner exhibiting anxiety or apprehension.