Experience versus understanding

Test No. [color=blue]incompl/inter-13 “At the Theatre”, question 5

You can’t compare the of watching live theatre with watching a film.

(a) knowledge
(b) experience
© understanding
(d) knowing

Test No. [color=blue]incompl/inter-13 “At the Theatre”, answer 5

You can’t compare the experience of watching live theatre with watching a film.

Correct answer: (b) experience

Your answer was: [color=red]incorrect
You can’t compare the understanding of watching live theatre with watching a film.
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Why experience was used here in?

Experience here means seeing/watching/feeling something for yourself.