Circumference = 2 x radius x Pi
Circumference = 2 x 0.8 x pi
Circumference = 1.6pi or 5.024 yards
area = r^2 x pi
Area = 0.8^2 x pi
Area = 0.64pi or 2.0096 square yards
The answer to your question is B.7/16.
The explanation for this is that 3/8 is in 16ths, 6/16, and 7/16 is greater than 6/16!
Hope this helps, if not, comment below please!!!