Answer:
Producer surplus
Neither
Consumer surplus
Step-by-step explanation:
Consumer surplus is the difference between the willingness to pay of a consumer and the price of the good.
Producer surplus is the difference between the price of the good and the least price the seller is willing to sell his product.
1. Price = $149
least price seller was willing to sell his laptop = $140.
Hence it's producer surplus.
2. Price = $59
there's no information on the least price the seller was willing to sell or the highest amount the buyer was willing to buy.
hence it's neither producer or consumer surplus
3. Price = $39
highest amount buyer was willing to buy = $46
Hence, it's consumer surplus
I hope my answer helps you