State in each case whether A ⊂ B or A ⊄ B.
A = {x : x is an integer}, B = {x: x is a rational number}
A = {….-2, -1, 0, 1, 2, 3….}
B = {-∞, ……..0, ……∞ }
A ⊂ B as integers are contained in rational numbers.