[单选题]
How many revolutionsx mge7 -,fmqpl gvt(ji +e0)a ,8t;mix pevshn: knt+ yt2t,fn(1r minute must a circular, rotating space station of radius 1000 m rotate to produce an artificial gravityn,:ts1n2nh ky(ft +tv of $9.80 \; m/s^2$?
A. $0.65 \; rpm$
B. $0.75 \; rpm$
C. $0.85 \; rpm$
D. $0.95 \; rpm$
