What Does the Field of Proteomics Study

What does the field of proteomics study?

A) The structure and function of cellular proteins and how they interact to contribute to traits.
B) The structure and function of cellular lipids and how they interact to contribute to traits.
C) The structure of carbohydrates and how they are converted into a useable form of energy for the body.
D) The structure of prions and how they can lead to various diseases within the body.
E) The interaction between cellular proteins and how they make up the bulk of the cell membrane.