In the figure, m ║ n and p is a transversal. Which of the following are alternate interior angles?
A. ∠1 and ∠7, ∠2 and ∠8
B. ∠2 and ∠8, ∠1 and ∠6
C. ∠3 and ∠5, ∠4 and ∠6
D. ∠3 and ∠7, ∠4 and ∠8
