[单选题]
The distance between adjacent orb7ljk(c4 cn xljg2,l/ k 7jlix0it radii inzgfiw. o5 u86bm ndth9g(ey8 ( 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.