Which of the following is the correct formula for finding the area of a circle?(1 point)

Responses

A. A=2πr
upper A equals 2 pi r

B. A=πr2
upper A equals pi r squared

C. A=πd
upper A equals pi d

D. A=C2÷4πA=πd2

B. A=πr2 (upper A equals pi r squared)