[单选题]
How many revolutions per minute must a circular, rrcm38 fka/a r+otating t(mi2x)ewzg 6/axxg2 ,g aah1otpy+0 space station of radius 1000 m rotate to produca 6aiyz a1+/,mgw0(hex xxo2tt) g g2pe an artificial gravity of $9.80 \; m/s^2$?
A. $0.65 \; rpm$
B. $0.75 \; rpm$
C. $0.85 \; rpm$
D. $0.95 \; rpm$
