he had taken the right decision

[English Learner]

English Language Tests, Intermediate level

ESL/EFL Test #83 "Save Our Animals (3)", question 8

And then one incident at the end of the rally convinced her that she had ......... the right decision to work for the organisation.

(a) done
(b) got
(c) taken
(d) brought

English Language Tests, Intermediate level

ESL/EFL Test #83 "Save Our Animals (3)", answer 8

And then one incident at the end of the rally convinced her that she had taken the right decision to work for the organisation.

Correct answer: (c) taken

Your answer was: incorrect
And then one incident at the end of the rally convinced her that she had done the right decision to work for the organisation.
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why cant use "done"

[Beeesneees]

Because you don't 'do' a decision.
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Cheers m' dears!