[单选题]
The distance between adj:; axmd5sg0 44-pzc4y )k ke+vekwb.spy(pplacent o8ql do) mhse r7d.snc*we(//n + 27cqwsxa7irrbit radii in 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.