[单选题]
If a person's eyeball is too k2ic v x )e)qbre.- rodl0x*p(long from fro zv*oini67sf6 lxae7 /.0htc8ni 1utont to back, the person is likely to suffer fraveltx 686 ct. n7s fh7i*0izno/i u1oom
A. spherical aberration.
B. nearsightedness.
C. farsightedness.
D. astigmatism.
