Answer:
The answer is $0.
Explanation:
Contributed service revenue or contributed revenue can be defined as the service or goods received with no payment or any other kind of exchange.
So in this question, the work from the volunteers and the film from CPA can be all accounted for contributed service revenue.
If we calculate them;
But since Unique Games are a non-profit entity, the amount they should recognize as contributed service revenue is $0.
I hope this answer helps.