In ΔABC shown below, :

The following flowchart proof with missing statements and reasons proves that if a line intersects two sides of a triangle and divides these sides proportionally, the line is parallel to the third side:

Which reason can be used to fill in the numbered blank space?
A. 1. ∠A ≅ ∠A
2. Reflexive Property of Equality

B. 1. ∠A ≅ ∠B
2. Corresponding Parts of Similar Triangles

C. 1. ∠A ≅ ∠B
2. Corresponding Angles Postulate

D. 1. ∠B ≅ ∠B
2. Reflexive Property of Equality