[单选题]
Spherical mirrors suf.r-x ime1y)r 94j,o dprmkzi9bo e1o75h;b (zdtl: m ffer 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.