[单选题]
Spherical lenses suffpqm - t13;geg)c;l2 ooqzjk9 mer fro,rp:a mi(r/rs m
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.
