Since there is no choice options, there could be lots of different answers like: survivers, travelers, etc. It all depends, can you put the options (if there is any) in the comments of my question? Then i can answer, thanks!
The mass of the object and its speed.
They had ancient sacrifices.
No. This is because communication is 2+ people corresponding to each other. Reading is just interpreting and consuming facts, rather than having a conversation.
I believe the answer is C. Both A and B.
