Dog food companies have developed a new technology that makes nutritious dog food out of garbage. We would expect, ceteris paribus, that the

a. supply curve of dog food would shift to the left.

b. supply curve of dog food would shift to the right.

c. demand curve for dog food would shift to the left.

d. demand curve for dog food would shift to the right.

e. demand and supply curves would shift to the right.