Final answer:
The goddess of festivity and rich banquets among the Charites is Thalia, making the correct answer c) Thalia.
Step-by-step explanation:
The Charites, also known as the Graces in Greek mythology, are goddesses associated with festivity, joy, and the pleasures of life. Of the options listed (Aglaea, Euphrosyne, Thalia, Pasithea), Thalia is traditionally associated with festivity and rich banquets. Therefore, the correct answer is c) Thalia. Aglaea represents splendor and glory, Euphrosyne stands for mirth and joyousness, and Pasithea personifies relaxation and meditation, which do not directly relate to festivity in the context of rich banquets.