Find the circumference and area of radius 13 cm.  Choose the correct answer: A) 124 cm ² B) 531 cm ² C) 354 cm ² D) 584 cm ² E) 594 cm ²

Rationale: "area of circle = π r ² = 22 / 7 × 13 × 13 cm ² = 531 cm ² answer : b"
Answer: B