The bricks used to make the walkway leading to the town hall are shaped like regular pentagons. Which of the following describes a regular pentagon?

A. a figure with 5 sides and 5 angles that are not congruent

B. a figure with 5 congruent sides and 5 congruent angles

C. a figure with 6 congruent sides and 6 congruent angles

D. a figure with 6 sides that are not congruent