I believe the answer is A and B
I think D. in my old griefs, and with my childhood's faith
Primary sources, for example, are witnesses. If there was a witness to a murder, they would be considered a primary source because they can give the police a first hand view of what happened. Published research, newspaper articles, and other media would be secondary sources as they are not at the event but just commentating and/or making observation from what they can tell from videos and gossip. Let me know if you have any more questions.
#2. the liquid peter gives makes the baby have a drugs the baby to sleep. he does this because if the baby wakes up and cries peter and the others will be discovered and caught.
I think #2 is d, not sure. Definitely not b or c.