[单选题]
How many revolutions per minute must a circular, rotating spaceg* +d px ;8z b3bdg0sb*nada88j1 ijwn station of- yd+/yufmut- radius 1000 m rotate to produce an artificial gravity-dm- yu +fu/yt of $9.80 \; m/s^2$?
A. $0.65 \; rpm$
B. $0.75 \; rpm$
C. $0.85 \; rpm$
D. $0.95 \; rpm$
