If A = {4n + 2 | n is a natural number} and B = {3n | n is a natural number}. Which of the following is correct for A ⋂ B?
1
{12n2 + 6n | n is a natural number}
2
{24n - 12 | n is a natural number}
3
{60n + 30 | n is a natural number}
4
{12n - 6 | n is a natural number}