[单选题]
If a person's eyeball is too long fromrl.nlt5xp ; q )3xprx2b/ spal* 3kgc1 front to back, the personvhmh; iqoq :)4m6t0*rq4z/bw e3c foz is likely to suffer*3fm ti4q 4hzq z /o):cow;em6bvh0rq from
A. spherical aberration.
B. nearsightedness.
C. farsightedness.
D. astigmatism.