Answer:
B. to create a pure German "master race".
Step-by-step explanation:
Hitler believed in the "cleanliness" of a race, and strived for "pure-blood", in such a way as to embrace the usage of marrying only within one's kind, as well as eliminating any path in which dissent may be approached. As such, he created concentration camps, in which he shipped all undesirables that he was able to find, in an effort to create this pure-blood people that he so aspired too.