Answer:
Positive: If there's something bad that happened in your family's past then you won't ever have to know about it.
Negative: Is that you may not know it ever happened
Explanation:
i d k i tried I'm sorry it not so good
.
Answer:
B. It introduces a new central idea to focus on.
Explanation:
I say this but I didn't read the passage, so excuse me if I'm wrong. It doesn't seem to be A, sense it isn't contrasting a statement. It really could be C as well, but this seems to be something it would focus on. It could not be D because it is not a concluding sentence, it would leave the passage in an awkward state. This is why I say B.
A short-beaked common dolphin
