Answer: C) The full set of genetic information encoded in the DNA of a human being, including all of its genes.
Explanation: In any organism, the word genome refers to all of the genetic information that is present within an organism. Thus, choice C is the best answer as it accurately describes the definition of a genome.
Choice B does not accurately describe what a genome is. Instead, it more so describes the metabolism or general chemistry that occurs within human cells.
Though genomes certainly play a role in choices A and D, neither or these choices describe what a genome is. A genome is the complete genetic makeup of an organism, not the protein makeup or phenotypic range of an organism. (though genes certainly affect both)