It is much easier to murder than settle differences peacefully.
There is also the issue of wanting power, if some can wipe out a group of people easily, then other races/creeds/nationalities will likely fall into line sooner than later. Hitler and Stalin did this prior, during, and post WW2.
He believed if he forced the Natives, there would be no 'parntership' between them.
I believe it's D. He represented the british soldiers
Tenant farming encouraged the rise of a new class of wealthy black farmers.