Which of the Following Describes Atomic Absorption Spectroscopy

Multiple Choice

Which of the following describes atomic absorption spectroscopy?

A) The transmittance of monochromatic electromagnetic radiation by an element in its excited state
B) The measurement of the electromagnetic radiation emitted by an element
C) The release of electromagnetic radiation due to a chemical reaction
D) The absorption of monochromatic electromagnetic radiation by an element in its ground state with a net zero charge