【B】(May and Sam are talking about the newest Adidas ad.) May: Plastic is really useful, but when we dump(丟棄) it, it doesn’tgo away. Now one truck of it ends up in our oceans everyminute. It’s killing sea life. The fish eat the trash; then weeat the fish. We’re feeding ourselves our own garbage.Now it is in our blood streams (血流). It’s so bad for health. Sam: Luckily, in 2015, Adidas got it out of the ocean and reusedit. They made a sports shoe out of it, one kind of “green”materials (材料), which are good for the nature. May: Adidas said that was just the start. They hoped more greenmaterials could be used in the future.Sam: That’s great! By doing so, not only more sea life but ourearth will be saved. People still can live a comfortable life. May: Maybe all the other companies(公司) should follow Adidas’example and try to make it their habit.
39. What is it in this dialogue?
(A) Making shoes.
(B) The ad.
(C) Going green.
(D) Plastic.