Which of the following arguments is an argument of interpretation

Which of the following factors would be a likely reason for low population density

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons

What kind of contact did christopher columbus and native americans initially have?