Find the circumference and area of radius 4 cm.
Choose the correct choice from the following choices
A) 24 cm ² B) 44 cm ² C) 50 cm ² D) 84 cm ² E) 94 cm ²

Rationale: "area of circle = π r ² = 22 / 7 × 4 × 4 cm ² = 50 cm ² answer : c"
Answer: C