Jamal wrote the following statements:

Statement 1: Perpendicular lines are two lines that intersect at 90° angles.

Statement 2: All right angles are congruent.

Which geometry term does each statement represent?
A- Statement 1: definition; Statement 2: theorem
B- Statement 1: postulate; Statement 2: definition
C- Statement 1: theorem; Statement 2: postulate
D- Statement 1: postulate; Statement 2: theorem