If A = {x: x is a prime number} and B = {x: x≤10, x ∊ N}, then A ∩ B is _____.

A. {1, 3, 5, 7}
B. {3, 5, 7}
C. {2, 3, 5, 7}
D. {1, 2, 3, 5, 7}