The Fraunhofer lines in the solar spectrum are actually:
A) Emission lines from hot gases in the chromosphere of the Sun
B) Emission sections of the continuous spectrum of the photosphere
C) Zeeman lines around sunspots due to the thin outer layer above the photosphere
D) Absorption lines due to the thin outer layer able the photosphere
E) Redshifted lines due to the Sun's rotation
Answer: D