If X Y Z refer to the parts of a mass spectrometer that perform different processes such that...
a) X ionizes the sample, Y accelerates the ions, and Z separates the ions based on their mass-to-charge ratio
b) X separates the ions, Y ionizes the sample, and Z accelerates the ions
c) X accelerates the ions, Y ionizes the sample, and Z separates the ions based on their mass-to-charge ratio
d) X separates the ions, Y accelerates the ions, and Z ionizes the sample