Use a Truth Table to Answer the Following Question $\begin{array} { l } A \cup B \\\frac { A } { ?B }\end{array}$

Use a truth table to answer the following question.Which, if any, set of truth values assigned to the atomic sentences shows that the following argument is invalid? $\begin{array} { l } A \cup B \\\frac { A } { ?B }\end{array}$

A) A: T B: T
B) A: T B: F
C) A: F B: T
D) A: F B: F
E) None-the argument is valid.