D is correct. There is fish in the water which provides lots of food. Boats can go up or down the river to transport items. Water is a basic need for humans so for a population to grow you need a good water source. Hope this helps! ;)
The one i would choose is A. Becuase the actions of them did cause his death.
It is a persuasion. As his use of tone suggests that he wants to convince his target audience to think about his opinions by stating facts which are true and cause us to reflect and do the right thing.
