PES prompt

Photoelectron spectroscopy
Which of the following statements best accounts for peak C being three times the height of
peak B:
a. The intensity of the photoelectron signal at a given energy is a measure of the
number of electrons in that energy level.
b. Electrons represented by peak B have approximately triple binding energy than
those represented by peak C.
c. In the photoelectron spectrum, as binding energy increases, the relative number
of electrons decreases.