Final answer:
This question is about functions in mathematics and how there is an input (2) that goes to two different outputs (B and C), which means it is not a function.
Step-by-step explanation:
This question is about functions in mathematics.
A function is a relation in which each input has exactly one output. In this case, there is an input (2) that goes to two different outputs (B and C), which means it does not satisfy the definition of a function.
For example, if we have a function f(x) = x^2, then f(2) = 4. In this case, the input 2 has only one output, which is 4. But in the given question, we have an input 2 that leads to two different outputs (B and C), so it is not a function.