Determine Whether a Function Exists with Set $A$ As the Input and Set

True/False

Determine whether a function exists with set $A$ as the input and set $B$ as the output.
- $\begin{array}{l|l}\text { SetA } & \begin{array}{l}\text { Set B } \\\text { Person }\end{array} \\\hline \text { Mary } & \$ 49 \\\hline \text { Lucy } & \$ 31 \\\hline \text { Eric } & \$ 23 \\\hline \text { Simon } & \$ 49 \\\hline \text { Ruth } & \$ 65 \\\hline\end{array}$