Answer: OPTION B
Explanation:
First it is importanty definition, a relation is a function if and only if each input value has one and only one output value.
The input values are the x-values and the output values are the y-values.
Therefore, "y" is the Dependend variable and "x" is the Independent variable.
Knowing the above, you can understand the definition of "Domain" and "Range".
The Domain is defined as the set of all the possible values of "x" or the Independent variable
The Range is defined as the set of all the possible values of "y" or the Dependent variable.
Therefore, you can conclude that the correct answer is the given in the Option B.