In a "Linear Economy," we take resources, make products, and throw them away. In a "Circular Economy," what is the primary goal?
(A) To make sure all products are shaped like circles.
(B) To design products so that materials can be reused, repaired, or recycled forever.
(C) To build more factories so we can produce things faster.
(D) To buy a new version of a gadget every year.