Why Is Trypsin Normally Used in Protein Mass Spectrometry

Multiple Choice

Why is trypsin normally used in protein mass spectrometry?

A) It is a positive control found in almost all animal cells.
B) It is used as a standard to define the upper and lower boundaries of mass sensitivity.
C) It cuts the protein into smaller peptides,which can be more accurately analyzed than longer fragments.
D) It is a useful general capture molecule for affinity purification.
E) It is an effective antibiotic to suppress contamination from microbes.