Final answer:
The question is about mathematics, specifically set theory and functions between sets, involving mapping elements from one set to another.
Step-by-step explanation:
The question seems to involve elements of set theory and mapping functions between sets, which are topics within mathematics. The sets A, B, and C are given, along with functions f and g. The function f maps elements from set A to set B, and function g maps elements from set B to set C.
It appears that there is a typo in the description of function f, and the information provided about the function g seems incomplete; however, understanding the provided mappings is crucial to solving the problem.