A could be true. B says that the shrimp he was eating a month ago are heavier than the shrimp he's eating now. Well, that actually is contradicting something we know. There was a comparative relationship there that the number of shrimp has gone down, but the total weight of shrimp has not gone down. If we think about the math involved, your total weight of shrimp is just how many shrimp you ate times the average weight per shrimp. If I eat 10 shrimp and on average, they each weigh about 20 grams, and I eat 200 grams of shrimp.