Final answer:
In Freudian theory, the eros instinct exemplifies the life-preserving, sexual, and creativity drive, with sexuality being the most representative example of eros.
Step-by-step explanation:
In Freudian theory, the eros instinct refers to the life-preserving, sexual, and creative drive. The example that best represents the eros instinct from the options provided is c) Sexuality. According to Freud, the id operates on the pleasure principle, seeking immediate gratification, which pertains to the eros. The eros instinct encompasses not only sexual desire but also the drive for life, procreation, and creativity.