Under which kind of data structure do pointers fall in?

Question

a)Primitive b)Non-Primitive c)Linear d)Non-Linear

Answer 1

i'm not sure, but If i'm right it's a

Answer 2

a) Primitive
From Wikipedia: "A memory pointer (or just pointer) is a primitive, the value of which is intended to be used as a memory address."

Answer 3

I think...
e) What the hell is going on?