Answer:
a) consumer
$5
Step-by-step explanation:
Consumer surplus is the difference between the willingness to pay of a consumer and the price of the good.
Willingness to pay is the highest amount a consumer would be willing to pay for a product. The willingness to pay in this question is $30.
The price of the goods is $35 but Alice would pay ($35 - $10) = $25
The consumer surplus is $30 - $25 = $5
Producer surplus is the difference between the price of a product and the lowest price a supplier would be willing to sell his product.
I hope my answer helps you.