[单选题]
How many revolutions per min rai,i4e r*4p+wszf1v ute must a circular, rotating space c* 6fn8lvs2fcy0jk(fv 6l 3hg station of radius 1000 m rotate to produce an artificial v gf6lv0k2njlch 6yf(8f 3s*cgravity of $9.80 \; m/s^2$?
A. $0.65 \; rpm$
B. $0.75 \; rpm$
C. $0.85 \; rpm$
D. $0.95 \; rpm$
