[单选题]
If a person's eyeball is too short from frl tbkg;.rqr lot6hl6: e10u/font to back, thu m)2,wr1ax5f ma8dhgc h;0ry t6 3dfge person is likely to suffer frg 0 hm)85d ft2fd,g3xah6 yawu rm1;crom
A. astigmatism.
B. spherical aberration.
C. farsightedness.
D. nearsightedness.
