Step 1: Understanding HGP.
The Human Genome Project (HGP) aimed to sequence and map the entire human genome.
Step 2: Field developed through HGP.
The large-scale study of genes and genomes led to the development of genomics.
Step 3: Elimination of other options.
Hydroponics deals with plant cultivation.
Eugenics focuses on selective breeding.
Proteonomics studies proteins, not directly genomes.
Step 4: Conclusion.
Thus, HGP explored the field of genomics.