What does enthused mean?

[Enthusy]

English Language Tests, Intermediate level

ESL/EFL Test #883 "The History of Coffee", question 1

According to coffee historians, its origin can be traced to an Arabian shepherd, Kaldi who found his goats jumping ......... around a dark green shrub covered with red cherries.

(a) enthusiastically
(b) enthused
(c) enthusing
(d) enthuses

English Language Tests, Intermediate level

ESL/EFL Test #883 "The History of Coffee", answer 1

According to coffee historians, its origin can be traced to an Arabian shepherd, Kaldi who found his goats jumping enthusiastically around a dark green shrub covered with red cherries.

Correct answer: (a) enthusiastically
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WHAT MEANS ENTHUSED

[Mister Micawber]

ENTHUSED.
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Native English teacher at Mister Micawber's

[Hoadong]

Hello teachers,

Should we put a comma after Kaldi to make the sentence like this: "According to coffee historians, its origin can be traced to an Arabian shepherd, Kaldi, who found his goats jumping enthusiastically around a dark green shrub covered with red cherries."

Is the bold an appositive?

Thank you.
Hoa
_________________
Hoadong

[Puppet]

It's like to be 'excited' or 'keen'.

But I really wonder .. how come 'goats' to be enthused to jump? !! I'm trying to go figure.

[Beeesneees]

[Beeesneees]

[Puppet]

Yes, that's sensible. The jumping happily was coming from the sense of Buzz.

Cleared! .. Thank you, Beee.

[Hoadong]