[单选题]
The distance between adjacent orb yec5e: /uhkfc 6rvt2:it radii +-+izw-huvfafssqi y ;sh5(5 1jko 7gin a hydrogen atom
A. increases with increasing values of n.
B. decreases with increasing values of n.
C. remains constant for all values of n.
D. varies randomly with increasing values of n.