[单选题]
Spherical lenses sufpa8;9 7(ah() pdthng e *mlgsjfwm(tau2w ln+3 jc 9(iu(ccgs:,e9chder from
A. both spherical and chromatic aberration.
B. spherical aberration, but not chromatic aberration.
C. chromatic aberration, but not spherical aberration.
D. neither spherical nor chromatic aberration.