Student: Calculate the circumference of a circular field whose radius is 6 centimeters.
Options:
(A) 2 cm
(B) 1 cm
(C) 15 cm
(D) 12 cm
(E) 19 cm.
Another student: Let's say, hmmm...
Circumference C is given by
C = 2r = 2*6 = 12 cm Final answer: (D).