Answer:
a) It ends up paying $5 but he was willing to pay up to $10
the difference is $10 - $5 = $5 dollars
b) zero as it purchase at the exact amount it was willing to obtain the T-shirt
c) none, as the trasnsaction do not occur there can't be any surplus.
Step-by-step explanation:
the consumer surplus is the amount the difference betwene the amount the consumer was willing to purchase the good or service and the actual market price ofthe transaction.