Answer:
b. increase, and producer surplus in the industry will increase
Explanation:
A normal good is a good whose demand increases as income increases.
If grass seed is a normal good, when income rises, demand increases and the demand curve shifts to the right. This would lead to an increase of demand over supply which would lead to a rise in price.
The rise in price increases producers surplus.
Producers surplus is the least price a producer is willing to sell a product and the actual price the product is sold. If price rises, producer surplus increases.
