A、It’s a kind of junk food. B、It can only be flavored with vegetables. C、It doesn’t have a fishy taste. D、It tastes strange. C细节

W: I’ve been reading about a new healthful snack food. It’s made from fish. Have you heard anything about it?
M: No, I haven’t, but I don’t like fish very much anyway.
W: Don’t worry.[19]Although it’s made primarily from fish, it actually doesn’t have a fishy taste. In fact, it can be flavored with tomato, cheese or chocolate, for instance.
M: How can it not taste fishy? Do you know how this snack food is made?
W: First, the fish is minced and cooked and fermented. Then, water and starch are added to make dough. ,
M: It sounds awful!
W: Actually the dough is very bland at that point. So the flavorings are added to give it some taste.
M: Well, it still sounds a little strange.[20]But I suppose this product will at least be of low calories and high protein, like a health food.
W: Yes, you could call it that. And it has a long shelf life, so it won’t spoil quickly. It is also easy to digest and can be made from types of fish that usually aren’t eaten or from high-grade fish by-products.
M: Mm, have you got any samples? I might be willing to try the cheese-flavored variety.
W: No, none of these seems to be available yet.[21]As I understand, this fish snack food probably won’t be in the stores for another couple of years. So you’ll have a while to get used to the whole idea.
M: A couple of years, ha? It may just take me that long. But thanks for telling me about it.
19. What can we know about the snack food mentioned by the woman?
20. Why does the man think this snack food is a health food?
21. When will the snack food be available on market according to the woman?