What does reason mean?

[Happy]

English Language Tests, Intermediate level

ESL/EFL Test #44 "Speaking: At the Theatre", question 8

I think that the main ......... for all this emotion is probably the way you have reacted to the play.

(a) ratio
(b) reason
(c) ration
(d) rate

English Language Tests, Intermediate level

ESL/EFL Test #44 "Speaking: At the Theatre", answer 8

I think that the main reason for all this emotion is probably the way you have reacted to the play.

Correct answer: (b) reason
_________________________

i need a answer

[Ralf]

And your question is? definition of reason
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