Answer:
A) Proteomics.
Step-by-step explanation:
Background knowledge:
Proteomics:
It is the study of patterns associated with protein expression in response to a specific stimulus at a given time.
Metabolomics:
It is the scientific study all chemical reactions occurring within the body. These reactions include all metabolites including the small molecule substrates, intermediates and products of metabolism.
Metagenomics:
It is the is a field of biological research in which genetic material recovered directly from environmental samples are studied.
Comparative genomics:
It is the study in which different organisms genomic features are compared. These genomic features include genes, gene order, the DNA sequence, regulatory sequences, and other genomic structural landmarks.
Functional genomics:
It is a branch of molecular biology in which gene functions and interactions are described.
Answer:
As Hormones are protein in nature and DNA expression varies according to different stimuli so correct answer of the question is A) Proteomics.