[单选题]
If a person's eyeball is too long from front to back, the peu y2tf1 a+ eqw0s+5jycrsonlu 3d0we i 6jmhlc8mw+2 -kt+o is likely to suff6w+do2l kc 3 +mhwjte0 um-8lier from
A. spherical aberration.
B. nearsightedness.
C. farsightedness.
D. astigmatism.
